Remove Electronic signature Presentation iOS
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FAQs
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Which blockchain-related project has the most impressive technology?
The biggest impact on industry will have IOTA in my eyes. Impact means that you’ll see communicating devices on this plattform all over the world in every sensor…. if they manage their roadmap! Otherwise they might get caught by Cardano.Guess it’s better to distinguish by branches: For traditional banking it could be XRP, for non-traditional banking/payment it might be NEM (especially Africa as I know), Greenback will be BTC, Contracting is ETH, NEO for payment/gambling/gaming in Asia, LTC more in US/EU (?), Dash for fast transactions, …Time will show us!
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What does a sample residential leaseback agreement look like in NYC?
What happens if the seller wants to stay past closing? What is a post occupancy agreement form? What does a NYC residential leaseback agreement template look like?Matching closing date preferences and general timing between home buyers and home sellers is a tricky process. Sometimes a seller wants to stay past closing because he or she has not found a new home to move into yet. When this is the case, the parties can either agree to delay the closing date or to a sign a residential leaseback agreement.A residential leaseback agreement allows a seller to stay past closing in the apartment even after ownership has changed. The amount of money paid by the seller to effectively rent the seller’s former home is negotiable, but is typically at least greater than or equal to the buyer’s mortgage and maintenance payments on a monthly basis. This arrangement might be favorable to either party as a faster closing provides certainty in many areas. For example, a quicker closing may allow a buyer to lock in a favorable mortgage rate instead of having to wait.See a sample NYC residential leaseback agreement template in its original formatting here: NYC Residential Leaseback Agreement Template | Hauseit NYCNYC Residential Leaseback Agreement TemplatePOST CLOSING POSSESSION AGREEMENTAGREEMENT, made this [X] day of [Month], 2015, by and between [Seller Name], (hereinafter referred to as the “Seller”), and [Buyer Name], (hereinafter referred to as the “Purchaser”).WHEREAS, Seller and Purchaser have entered into a certain Contract of Sale (the “Contract”), dated the day [X] of [Month], 2015, for the purchase of Premises known as Cooperative Unit [X] at [Address], andWHEREAS, Seller is desirous of remaining in possession of the premises after the transfer the Shares and Proprietary Lease appurtenant to the Unit, (the “Closing”), that has occurred on this date pursuant to the Contract.NOW THEREFORE, in consideration of the transfer the Shares and Proprietary Lease appurtenant to the Unit to the Purchaser on the [X] day of [Month], 2015, without the Seller giving vacant possession of the Premises to the Purchaser, it is hereby agreed as follows:Post Closing Possession Period. The Seller shall have the option of remaining in possession through 7:00 PM on November 31, 2015.No Landlord/Tenant Relationship. This agreement shall not be deemed to have created the relationship of Landlord and Tenant between the Seller and the Seller shall not be considered a tenant of the Property and shall pay no rent therefore, but shall be considered as former owners remaining in possession and may be treated in accordance with R.P.A.P.L Section 713(8).Holdover Fee. Upon closing, Sellers shall pay to or credit the Purchasers the sum of $[Number] ([Amount] Dollars) representing the Seller’s fee for the period from closing, through November 31, 2015, based on the per diem mortgage payment on Seller’s current loan and the monthly maintenance on a per diem basis.Escrowed Funds. Upon closing, the Sellers shall deposit with Sellers’ attorney the sum of $30,000.00 (Thirty Thousand Dollars), (the “Escrow Funds”), with Seller’s attorney agreeing to act as Escrow Agent, and hold the Escrow Funds in escrow, until such time as the Seller has delivered the Premises vacant and in broom clean condition with all personal property as stated in the Contract, no later than 7:00 PM, November 31, 2015, (date of possession). The escrow fund shall not be a limitation on Seller’s liability.Holdover Penalty. In the event that the Seller has not delivered the Premises vacant and in a broom clean condition by November 31, 2015 at 7:00 PM, then, and in that event, it is agreed that the Escrow Agent shall pay to the Purchaser the sum of $1,000.00 (One Thousand) Dollars per day, for each and every day that the Seller fails to deliver the Premises vacant and in a broom clean condition to the Purchasers, in addition to all fees and expenses pursuant to paragraph 3 Said payment or payments shall be made from the Escrow Funds held by the Escrow Agent but shall not be limited thereto, the Seller remaining liable for any deficiency that may thereafter occur.Utilities. Until Seller vacates the Property, Seller shall be responsible for and pay all utility charges including but not limited to gas, electricity, telephone, water, propane and/or fuel and oil use, and cable and security system charges if any.Maintenance of Premises. Seller shall maintain the Property, including the smoke alarm and carbon monoxide detectors, in the same order and condition as of the Closing Date, reasonable wear and tear Seller shall not make any alterations or changes to the appearance of the Property during the Term without the prior written consent of Buyer, including, without limitation, the redecorating or remodeling of any portion of the Property, or the removal of any included appliances and fixtures, except as otherwise provided herein.Damage/Repairs. In the event that the Premises are not delivered in accordance with the terms of the Contract, then the same shall be repaired by the Seller, at the Seller’s sole cost and expense, and upon failure to do so by the Seller, the Purchaser shall cause the necessary repairs and/or cleaning to be made and the Escrow Agent shall pay for same from the Escrow Funds upon presentment of receipted bills evidencing the cost thereof to the Purchaser, however, payment shall not be limited to the amount held in Escrow, with Seller remaining liable for any deficiency that may thereafter occur.Release of Escrow. The Escrow Agent shall not release the Escrow Funds to Seller, until such time as the Purchaser shall have had a fair opportunity to inspect the Premises, and Escrow Agent has been informed by Purchaser that the premises are in the condition as contemplated by the Contract of Sellers’ attorney, upon notice that premises are in order shall, within 48 hours, release any and all remaining escrow funds to Seller. If following the date of possession, Seller’s’ attorney is not notified of any problems relating to the condition of the premises within 3 business days, Purchaser will be deemed to have accepted the premises in their current condition, and Seller’s attorney shall release all remaining escrow funds to Seller.Insurance. Seller shall maintain and continue to have liability insurance policy for both property and personal injury (which may be in the form of a “tenant’s policy”), in full force and effect throughout the term of their post-closing possession, as tenants, or as so required by the insurance Purchaser shall be indemnified and held harmless from any liabilities or claims made upon Seller during the period of Seller’s post-closing possession. Purchaser shall be required to purchase a cooperative “homeowner’s” policy to take effect on the date of closing. Each party shall submit a copy of such policies to the other at closing upon request.Purchaser Inspection. Purchaser shall have the right to a “walk through inspection” within the 48 hours prior to Closing, as well as a second “walk through inspection” within twenty four (24) hours after Seller provides vacant and broom clean possession.Indemnification. To the fullest extent permitted by applicable law, without regard to the lapse, cancellation, failure or disclaimer of the insurance policy(ies) referred to in Section IO above, Seller shall indemnify Purchaser from and against any and all liability and shall hold Purchaser harmless from and shall pay any claims, damages, loss, cost or expense (including without limitation, reasonable legal fees and disbursements, court costs, the cost of appellate proceedings and any other reasonable costs of litigation) which Seller incurs arising out of or in connection with bodily injury or property damage occurring to any person or persons, including but not limited to Seller, members of Seller’s immediate family, guests, licensees and invitees, occurring during the Term and within or on any portion of the Property, regardless of the cause, excepting only events of injury or damage caused by the willful misconduct or negligence of Purchaser, Purchaser’s agents, contractors, employees, invitees, guests and permitees.Seller’s Default. In the event Seller does not deliver the Premises in accordance with this Agreement, Seller shall be in default of the Purchaser may, upon Seller’s default, proceed with summary eviction proceedings governed by the provisions of RPAPL Article 7, including but not limited to §713 relating to “grounds where no landlord-tenant relationship exists.” Seller specifically authorizes delivery of a copy of the Notice of Petition and Petition pursuant to RPAPL §§713 and 735 and acknowledges and agrees that such delivery shall be deemed good and sufficient service upon Seller. Seller shall pay Purchaser’s expenses (including, without limitation, reasonable attorneys’ fees, disbursements, court costs, the costs of appellate proceedings, and any other reasonable costs of litigation) should such action be necessary.Purchaser’s Access. Purchaser shall have the right to access the Unit at reasonable times, and with reasonable notice to Seller, during the post-possession period.Miscellaneous.This Agreement represents the complete agreement of the parties concerning the granting of post-closing occupancy of the Property to No oral agreements or promises will be binding. If any of the terms and provisions of the Contract conflict with any of the terms and provisions of this Agreement, the terms and conditions of this Agreement shall prevail, except that in the case of such a conflict as to the description of the Property or the identity of Buyer or Seller, the Contract shall control. If any of the terms or conditions of this Agreement are for any reason held to be invalid or unenforceable, such invalidity or unenforceability shall not affect any of the other terms or conditions of this Agreement.This Agreement shall be governed by and construed in accordance with the laws of the State of New York without regard to principles of conflicts of laws. Any and all disputes, controversies or litigation that may arise between the parties must be brought in the county where the Property is located.No waiver by Seller or Buyer of any rights of the parties hereunder shall be deemed or construed to be a waiver of such rights with respect to other or future actions of the parties.This Agreement shall inure to the benefit of the parties hereto and bind their respective heirs, successors and assigns, except as otherwise provided herein. The rights of possession hereunder are personal to Seller and Buyer and may not be assigned, nor may the Property be sublet. Any assignment shall be absolutely null and void and constitute a bsignNow of this Agreement such that Buyer shall, at Buyer’s option, have the right to terminate this Agreement.This Agreement may be executed in one or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. This Agreement may be transmitted electronically and the parties intend that electronically or facsimile transmitted signatures constitute original signatures and are binding on the parties.This Agreement is intended to supplement the real estate contract to memorialize the intent of the parties, and shall be considered legal and binding upon the Parties. The parties ratify and reaffirm the real estate contract and agree that in the event the Title is not transferred from Seller to Purchaser, this Agreement shall be deemed null and void and have no further effect.This Agreement shall survive closing.IN WITNESS WHEREOF, the parties have hereunto set their hands and seals the day and year first above written.Seller:Purchaser:Agreed to by Escrowee:Please note: this article is not intended to serve as legal or tax advice. You should consult your lawyer and tax attorney for all aspects of your real estate transaction.
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What are the unique features of iPhone 7 when compared to iPhone 6?
The iPhone 6s and iPhone 6s Plus launched in September 2015, so now we're starting to excitedly think about what this year's iPhone 7 and iPhone 7 Plus could bring. The web is full of speculation about new iPhone(s) that Apple will launch in 2016, and in this article we gather all the rumours about the iPhone 7: release date, design, specs and new features, from wireless charging to a touchscreen displaywith built-in Touch ID. Plus any leaked photos of iPhone 7 components we get hold of, and all the cool iPhone 7 concept illustrations and videos that designers have come up with.We're sure to see a next-generation iPhone in 2016, but what will the new iPhone 7 look like? (Traditionally, Apple alternates between internal upgrades for the 'S' update, then a physical redesign for the full-number update, so a completely redesigned chassis is likely.) What new features should we expect? And when will the iPhone 7 come out? We round up the evidence to bring you everything there is to know about the iPhone 7 so far.How to fix common iPhone iMessage problemsiMessage is a hugely popular messaging platform for Apple devices used by millions around the world - but that doesn't mean it doesn't run into…In our iPhone 7 rumour roundup we cover a lot of ground: you'd be amazed by the clues, hints and general speculation about the iPhone 7 that people have managed to dig up. But for those who don't want all the detail, the following section sums up our verdict on the whole thing. Consider it a sort of TL;DR for the article as a whole.In a nutshell, then, we reckon:1) Apple will launch two new iPhones in September 2016, and just possibly three. The theory that Apple will push the main iPhone 7 launch forward to summer 2016 seems thin to us, but it is possible we will see an update to the 4-inch iPhone line earlier than the autumn, and maybe even as soon as March 2016.2) We expect a 4.7-inch phone (called the iPhone 7), and a 5.5-inch model (theiPhone 7 Plus). If Apple does make another 4-inch iPhone (which, thanks to the success of the larger iPhones, is by no means a certainty) then we think it'll be called something like the iPhone 7 mini, but iPhone 6c, iPhone 6e and iPhone 5se are possibilities too.3) The iPhone 7 is likely to get a substantial physical redesign after the largely identical iPhone 6/6s generations. It's too early to know what direction Apple will pick, but it's likely to be thinner than ever: removing the headphone jack would be one way to help achieve this, forcing music fans to use wireless Bluetooth headphones, or headphones that connect via the Lightning port, or an adaptor. The 'no headphone jack' rumour is starting to gather momentum, with multiple 'confirmations' via multiple (but anonymous) supply chain sources, although we've yet to see firm evidence ourselves. Other design tweaks could include a flush camera and the removal of the antenna bars.4) Battery life in the iPhone 7 may be a little better than in the iPhone 6s and 6s Plus, but Jony Ive's comments have made it plain that Apple doesn't consider a higher battery life to be worth signNow sacrifices in other areas (we suspect that, if they're honest, most smartphone buyers would agree) and Apple's larger-screen iPhones have decent batteries already. You can always buy the lovely new battery pack case...5) Higher screen resolution is a possibility - Apple undermined its own 'Retina is as sharp as your eyes can see' myth with the iPhone 6 Plus, and the company is playing catchup against many of its rivals in terms of screen resolution. Apple may well take the higher pixel density that was exclusive to the iPhone 6 Plus and 6s Plus (401 pixels per inch, as compared to 326ppi for all non-Plus iPhones), and apply it to all the models in the next generation; it could even raise the pixel density further than this, although we fear that this is unlikely. And a harder screen material would play well, whether Apple manages to resurrect the sapphire situation or goes with Corning's new Project Phire.6) 16GB will surely be phased out as the lowest storage offering. It's nowhere near enough in this day and age. We hope and expect the iPhone 7 to start at 32GB, with 64GB and 128GB options.7) The iPhone 7 could get a USB-C port, like the new 12-inch MacBook, but we think this is unlikely. The change from 30-pin to Lightning is recent enough (and was painful enough for many users) that to switch again now would be highly controversial.8) And as for the other out-there rumours? 3D screen: no. Curved display: probably not. Flexible display: nope. Edge-to-edge screen: yes, quite possibly. Spring-out gaming joystick in the Home button: definitely not. Wireless charging: quite possibly. Better waterproofing: a reasonable bet, although the self-healing ports aren't likely to appear for a while yet.: What is the iPhone 7?Sorry if that sounds obvious, but it's not as simple a question as it sounds. The iPhone 7 isn't the seventh iPhone (the iPhone 6s and 6s Plus were the 11th and 12th iPhones respectively, in the product's ninth generation, so that ship sailed a long time ago) but it's what we have been for convenience calling Apple's nextiPhone launch.At the moment Apple sells iPhones in three sizes: with 4-inch screens (the iPhone 5s); with a 4.7-inch screen (the iPhone 6 and iPhone 6s) and with a 5.5-inch screen (the iPhone 6 Plus and iPhone 6s Plus). We're currently working on the basis that Apple will make at least one new model in the latter two sizes, and for now we're choosing to call those theoretical devices iPhone 7 and iPhone 7 Plus. There could be another 4-inch iPhone, though - which we like to call the iPhone 7 mini, but could be called almost anything at this point.In fact, the 4in iPhone 6c, or iPhone SE as it is currently being called, has hit the headlines big time over the past few months, and it's rumoured to be arriving as soon as March (this month). Find out more in our iPhone 6c round-up.Update (09/03/2016): Although we originally thought that Apple would release two variants of its iPhone 7 this year (4.7in and 5.5in), the latest rumours suggest that there could, in fact, be three new models available at launch. Along with the 4.7in iPhone 7 and 5.5in iPhone 7 Plus, via a that there will be a third (even more) premium option available, based on the already huge iPhone 7 Plus, which is leading some to call it the iPhone 7 Pro. We're not too sure about this unofficial branding, but we'll go with it until something more convincing gets leaked. Anyway, we digress. What's the main difference between the iPhone 7 Plus and the iPhone 7 Pro? A new 'groundbreaking' camera. Or should that be cameras? As Kuo claims that the iPhone 7 Pro will sport a dual-camera system on the rear, developed by LinX, an imaging specialist that Apple acquired back in 2015. The LinX imaging technology should provide enhanced speed when taking photos and better low light photography, as well as possibly being able to incorporate a 2-3x optical zoom for better quality when taking photos. It's also rumoured that the camera module is so thin that the camera bump present in the iPhone 6 and 6s range could be a thing of the past (or so we hope!).But why only release the upgraded camera technology on an expensive model, when the iPhone 6s and 6s Plus cameras can barely compete with the likes of the Samsung Galaxy S7? According to Kuo, the decision was made because of supply constraints - Apple can't produce enough LinX camera modules for both the 7 and 7 Plus, so creating a third option allows the company to still bring the technology to market. Apple's "Shot on iPhone" marketing campaign is hugely popular, and a 'Pro' variant of the iPhone with an enhanced camera would definitely be the poster boy for the campaign.While this is only a rumour and there are no leaked images supporting the claim, Ming-Chi Kuo has something of an impeccable track record when leaking the latest Apple news. Over the past 18 months, Kuo broke the news of the new 12in MacBook before anyone else, along with the iPad Pro (and its November launch date), as well as the bigger screen sizes associated with the iPhone 6 and 6 Plus. That's without mentioning the fact that Kuo predicted every major feature of the iPhone 6s four months before Tim Cook officially announced the smartphone.If Apple sticks to its traditions, we can expect the iPhone 7 to arrive in mid-September 2016.The iPhone 6s and iPhone 6s Plus were unveiled on 9 September 2015 (and released to the public on 25 September), iPhone 6 and iPhone 6 Plus were unveiled on 9 September 2014 (released on 19 September); the iPhone 5c and iPhone 5swere unveiled on 10 September 2013; the iPhone 5 was unveiled on 12 September. There's a pattern there that the eagle-eyed reader may be able to spot. Our money is on the 6th, 7th, 13th or 14th of September 2016, since it's usually a Tuesday or a Wednesday. Clear your diary. Although with this being said, there could be some delay for the launch of the iPhone 7, though, or at least a lower than expected supply at launch. This is due to an earthquake in Taiwan that caused damage to Apple supplier TSMC's factories. Earlier in February 2016, reports statedthat TSMC has signNowed a deal with Apple to become the company's sole manufacturer of the A10 chip for the iPhone 7.Apple is likely to launch a new phone ahead of that, though, but it's not going to be the iPhone 7. The company has sent out invitations to an event that's taking place on 21 March at Apple's headquarters, where the iPhone SE is likely to make an appearance as well as a new iPad Air 3, new Apple Watch straps and possibly new Macs too.AppleInsider is quoting a "reliable source" who predicts that 2016's iPhone 7 will launch several months ahead of the usual yearly upgrade cycle, appearing in the summer of 2016 instead of in September.The site states that this particular source "has, in the past, provided accurate information about Apple's future product plans", but while this may be true, it must be pointed out that plenty of other sources have made this exact prediction about previous iPhone launches and they've always been wrong. It's just one of those things that gets repeated every year because it's such an appealing rumour.Apple has signNowly shifted its iPhone launch cycle only once: the first four iPhones all launched in summer, then Apple pushed the iPhone 4s back to the autumn, and then every iPhone since then has stuck to that launch cycle. (The iPhone 4s came along in October, admittedly, rather than the September launch date that Apple has followed ever since the iPhone 5.)If Apple changed the cycle once, it can certainly change it again. But it won't do so lightly: an unexpectedly early upgrade is always infuriating for those who've just bought the previous generation model, and it creates the suspicion that the company might pull a similar trick the following year, leading to a customer base that is more cautious about upgrading. What's more, Apple's natural cycle of announcements sees iOS and OS X upgrades announced at WWDC in June, leaving enough time for the software to be completed in time for the autumn hardware launches. It seems like a risk for Apple to announce everything in the summer and leave its customers hungry for new releases for the rest of the year.And the reasoning for why Apple would push forward the iPhone 7 launch date is thin."This year's iPhone 6s upgrade features largely the same external design as the iPhone 6," argues AppleInsider. "That has prompted concerns among investors that demand for the iPhone 6s could wane, particularly toward the tail end of the product cycle… Launching the iPhone 7 in an earlier window of 2016 would be one way for Apple to address those concerns."The thing is, every S-class iPhone upgrade has been accused of offering only minor upgrades on the previous generation, yet they all still sell well. And if anything the iPhone 6s and 6s Plus represent more signNow upgrades than the iPhone 4s and iPhone 5s did: Live Photos is fun, 3D Touch has the potential to alter the way we think about smartphone interfaces, and the processor and cameras are much improved. Even Touch ID is noticeably quicker.So while this isn't out of the question, we can't see that any convincing reason has been given why Apple should shift its update schedule next year. (Mind you, as Boy Genius Report points out, this rumour might be a mixup based on Apple's imminent release of a new 4-inch iPhone, which wouldn't replace the iPhone 6s or 6s Plus and therefore wouldn't be such a disruptive launch if it came in the summer. Read ouriPhone 6c rumours for more on that, or read the next section for the theory that Apple will split its iPhone launches into two yearly events.) Two iPhones a yearSo much for the likely launch date. But it's possible - and has been widely speculated - that Apple will begin releasing new iPhones twice a year, to help it keep up with the ever growing and ever improving competition. This would mean an iPhone launch event in the spring of 2015 followed by another in the autumn.In this case we would expect less dramatic enhancements in each update: perhaps the full iPhone 7 in autumn, followed by an 'S'-class update in the spring. Or Apple might choose to update its 4-inch smartphones in one set of announcements and its larger phones in the other.It's an interesting theory, but if we were betting men and women Macworld would put its money on September iPhone launches for some time to come.i DesignApple usually keeps the same design for two generations of the iPhone (the 4 and 4s, say, or the 6 and 6s), before unveiling a physical redesign on the next update. We expect the iPhone 7 to be fundamentally different in look and design to the two generations of iPhone that precede it.It's possible that Apple will use different materials to make the iPhone 7 more durable. Before the iPhone 6 and iPhone 6 Plus were unveiled there was speculation that Apple would use Sapphire glass for the display and Liquidmetal for the chassis, and two generations later Apple may be ready to unveil one or both of these upgrades.iPhone 7 design: Apple planning to debut OLED iPhone in 2017Yes okay, this may turn out to be a rumour regarding the 'S' variant of the iPhone 7 series, but we think it's one still worth mentioning. According to Chinese website Nikkei (via AppleInsider), Apple is planning to make the switch to OLED a year sooner than previously expected, and will be shipping with the iPhone in 2017. Although don't get too excited, as it won't be all iPhones initially - due to manufacturing constraints, the OLED display will be used in either the 5.5in iPhone 7s Plus or the fabled iPhone 7s Pro. According to Nikkei, Apple is looking to quickly make the switch to OLED displays to improve iPhone sales which analysts predict will stall in the near future. Samsung and LG are expected to provide the bulk of the OLED display manufacturing, although Japan Display is also said to be planning mass production of OLED displays starting early 2018. It's worth taking this with a pinch of salt though, as the ever-reliable KGI Securities Ming-Chi Kuo claims that Apple is unlikely to adopt OLED displays in the iPhone lineup until 2019, quite a way away. : Flush rear camera, stereo speakers, thinner Lightning port & no antenna bandsOn 2 February, new reports emerged that suggest the iPhone 7 will no longer have a protruding camera on the rear, and will ditch the antenna bands in favour of a completely unbroken rear casing.That's according to a source that allegedly spoke with MacRumors, revealing the details about the iPhone 7 design for the first time.The changes could be achieved through the use of a ceramic back rather than metal, according to Business Korea's 5 February report, but there's no real evidence to support this yet.NEW: The rumours were reiterated in a new report by Mac Otakara that was published on 29 February, claiming that the iPhone 7 could also have a thinner Lightning port and stereo speakers, and all of these factors could make the iPhone 7 1mm thinner than the iPhone 6s, down to 6.1mm from the current 7.1mm.iPhone 7 design rumours: 'Confirmation' that Apple is ditching 3.5mm headphone portAfter Mac Otakara proposed the idea in late 2015 (see below), two Chinese-language sites have separately offered what they claim is 'confirmation', based on sources in the supply chain, that Apple will not include a 3.5mm headphone jack in the iPhone 7 - although of course it is possible that their sources are the same person, or that one site is just following the other's story. (For what it's worth, neither site links to the other.)Anzhuo (link will require translation) cites "supply chain news" and claims that Apple "has confirmed [that it has] cancelled [the] 3.5mm headphone jack on the next iPhone, [and] meanwhile will replace wired headset [with a] Bluetooth wireless headset."The firm suggests that users will be restricted to wireless headphones, since "headphone Lightning previously said interface may not exist" - a translation-mangled phrase we take to mean that we probably won't be able to connect any Apple-bundled headphones via the Lightning port. (Third-party headphones that connect via Lightning are already available, albeit rare.) But any Chinese-literate readers are welcome to take issue with our interpretation.Meanwhile, Wei Feng, poetically reporting "the latest coming from the mouth of the supply chain of wind", states that Apple indeed plans to get rid of "the traditional body in the next generation iPhone headphone jack, and will start from this year for the iPhone with wireless Bluetooth headsets". Wei Feng doesn't specify that the Lightning EarPod story is dead, as Anzhuo did, but makes no mention of any alternative to wireless headsets.Fast Company is the latest site to 'confirm' this rumour, citing "a source with knowledge of the company’s plans". The site predicts that "the new phone will rely on its Lightning cable port for sound output to wired headphones".And on 20 January, Cult of Mac shared iOS 9 code that could further hint at the removal of the headphone jack for the iPhone 7. Twitter user Chase Fromm highlighted a bit of code within the iOS 9.3 beta 1.1 software that reads: "Headphones.have.%http://input.NO ."The 3.5mm headphone jack won't be with us forever, of course (and Apple has a history of controversially jumping off soon-to-be-obsolete technologies ahead of the curve, as it did with signNow Flash, CD/DVD drives, FireWire, conventional USB ports and so on), but to ditch it without offering any wired alternative strikes us as extreme, even if it would allow Apple to make the iPhone 7 even thinner, squeeze in a bigger battery or whatever.And what do the headphone companies make of all this speculation? Interestingly enough, as the Verge observes, most of the companies at CES were surprisingly sanguine about the prospect of the headphone jack disappearing from Apple's most popular product. Most of them, after all, also sell wireless models, and there remains the prospect of Lightning-compatible headphones as a new avenue to explore."If the rumours are true, the new iPhone 7 will have a non-standard, proprietary headphone jack - making every pair of headphones on earth useless," the petition reads. "Not only will this force iPhone users to dole out additional cash to replace their hi-fi headphones, it will singlehandedly create mountains of electronic waste - that likely won't get recycled."The petition set itself a goal of 200,000 signatures, and passed that shortly before time of writing: it's presently on 204,303. So there is some weight of feeling behind this. What do you think?The original 'no headphone jack' rumourIn late 2015, the Japanese-language site Mac Otakara first reported on a rumour that the iPhone 7 won't get a headphone port at all, enabling Apple to shave a further millimetre from the device's thickness.As we wrote at the time, this would have consequences. It wouldn't rule out headphone use entirely, but it would restrict it considerably. Users would have three options: wireless Bluetooth headphones; newly designed headphones that connect via the Lightning port; or an adaptor, which would probably be overpriced.The iPhone is very much the iPod of its day, and music is a big part of its appeal, making this a big gamble in order to make an extremely thin phone even thinner. This would be even more unpopular than the removal of USB ports from the 12-inch MacBook. Is Apple really this obsessed with thinness?Lightning-connected Apple Earpods & Wireless EarpodsIf Apple doesn't include a 3.5mm headphone jack in the iPhone 7, it's going to need to ship the phone with new Earpods. According to 9To5Mac, the iPhone 7 will have Lightning-connected Earpods instead, and Apple is also said to be working on wireless Earpods as an alternative.The wireless Earpods, which are likely to be created with help from the team from Beats Electronics, which Apple acquired in 2014, are expected to be so completely wireless that they won't even have a cable that connects the earpieces together.And instead of EarPods, they could be called 'AirPods,' a name that Apple has already registered the trademark for.AirPods may not come cheap - they'll be a premium alternative to EarPods according to the report, and could be around the £200 mark.iPhone 7 design rumours: Apple could keep the headphone jack, but make it slimmerApple was not able to announce, in September, that the iPhone 6s and 6s Plus are the thinnest iPhones ever. In fact, they are a tiny bit thicker than their respective predecessors, because they had to squeeze in the components to power 3D Touch and some extra-thick aluminium reinforcement around the most bend-prone areas.For the iPhone 7, therefore, we suspect that the company may like to trim a few millimetres. One way it can do this - and a clue that thinness is still on its designers' minds - is a newly granted patent, number 9,142,908, for a cut-down headphone connector.If you look around the edge of your current iPhone, you'll see that the headphone aperture appears to be the external factor on exactly how much Apple can thin down the device. The headphone port is bigger, from top to bottom, than the Lightning port, bigger than the speaker grill, marginally bigger than the volume buttons (which could easily be cut down if necessary). It's an obvious target for miniaturisation.Apple's solution to this is a "Low profile male connector", which sounds a bit like someone who isn't very good at dating but in this case means a D-shaped headphone port. Instead of being round, the headphone connector has a segment lopped off so it takes up slightly fewer precious millimetres.Via Apple Insider. Buttonless designIn mid October, Piper Jaffrey analyst Gene Munster (who is notorious for his Apple Television predictions, which have so far proved to be inaccurate) has suggested that the iPhone 7 won't have a Home button, thanks to the new 3D Touch technology found in the iPhone 6s display."3D Touch may provide Apple with a way to eliminate the home button on the phone and use the additional space to make the screen bigger or the device smaller," he said. "One barrier to this could be Touch ID, which is integrated into the home button currently. Apple would need to move the Touch ID reader to potentially the side of the phone to remove the home button."As we discuss later in this article, an Apple patent has revealed that the company is investigating ways to build the Touch ID sensor into the screen itself, so Munster's theory doesn't seem implausible, but as proven with his Apple television predictions, Munster isn't always right... even he says that the odds of a buttonless iPhone 7 are 50%. Could we even get a thicker chassis? (Probably not.)We expect the iPhone 7 to be thinner, as explained above, but a lot of users feel that the iPhones have already signNowed the peak of useful thinness - in the sense that reducing the thickness of the devices any further is going to compromise on qualities such as physical robustness without offering any real benefits in terms of portability. It's even possible that the iPhone 7 could be a bit thicker, if Apple feels it can use this change to incorporate useful new features. We think this is unlikely, but let's run with the theory as a thought experiment.One reason why the iPhone 7 may be thicker than the iPhone 6s, for instance, would be so that it can feature what Apple calls "sidewall displays".Apple has published a patent relating to such displays, hinting that a future iPhone could feature a display that extends on to the sides of the device (or a slim second display sitting on the side of the device). This could give access to the slide-to-unlock functionality, music player controls, messaging readout, caller ID, system controls and more.: Non-metal bodyThe Weibo source who spills the beans on Apple's waterproofing tests in our new features section also reckons that the iPhone 6s & 6s Plus will be the last iPhones to be made of metal. The iPhone 7 will have a chassis made of something else.But made of what? We don't know. Although liquid metal, ceramics, plastics and sapphire have all been thrown around as possibilities. We find it odd that Apple would ditch its metal design so soon after upgrading to 7000-series aluminium, but radical design changes cannot be ruled out for a full-number iPhone update, and as mentioned above a report from Business Korea in February seems to suggest that ceramic is indeed a possibility.s: Curved wraparound screenWe're into the realm of patents here, which we would generally warn readers means we're talking about developments that could easily end up appearing in a shipped product several years down the line or not appearing at all - Apple, like most tech companies, routinely applies for far more patents than it's ever going to use. But this one has actually been granted (it was applied for a few years back) so it could be reasonably close to reality. refers to an "electronic device with wrap around display". And essentially it describes a curved screen that allows for more screen elements to be displayed without making the device signNowly bigger. (Remember that the illustrations rarely represent what the designer has in mind. In theory the display could wrap entirely around the device, or at least extend over one edge like the Note Edge.)While the patent talks about a "flexible display assembly", it's important to note that this isn't a patent for a bendable screen: the flexible portion of the display is attached to the interior surface of the curved transparent housing, which "provides a rigid support structure that prevents deformation".This patent, like the wraparound display patent mentioned in the new featuressection, was spotted by Patently Apple.: The flexible iPhoneIf we can return to the subject of patents, here's one that's pretty leftfield. We don't expect this to appear in the next generation of iPhone, but it's an intriguing insight into the design directions Apple is considering - or choosing to pretend it's considering."A flexible electronic device may include a flexible display, a flexible housing and one or more flexible internal components configured to allow the flexible electronic device to be deformed," the patent explains.That really would be a bold riposte to Bendgate: transforming it from a bug to a feature, in effect (even though, as we've repeatedly pointed out, the iPhone 6 Plus is hardly unusual in its susceptibility to strenuous bending). The iPhone would bend, the screen would bend, the battery inside would bend, everything would be fine.It's still hard to see exactly what this would gain us, though, as opposed to the converse rumour (discussed further down this section) holding that Apple will beef up the iPhone 7's durability by using the 7000 SeriHope u like my answer ,If yes please do give it a thumbs up Thanks A2A
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What are some nodeJS interview questions?
Check these questions which would be needful to you in your next interview:Q-1. What Is Node.Js?Answer.Node.js is a JavaScript runtime or platform which is built on Google Chrome’s JavaScript v8 engine. This runtime allows executing the JavaScript code on any machine outside a browser (this means that it is the server that executes the Javascript and not the browser).Node.js is single-threaded, that employs a concurrency model based on an event loop. It doesn’t block the execution instead registers a callback which allows the application to continue. It means Node.js can handle concurrent operations without creating multiple threads of execution so can scale pretty well.It uses JavaScript along with C/C++ for things like interacting with the filesystem, starting up HTTP or TCP servers and so on. Due to it’s extensively fast growing community and NPM, Node.js has become a very popular, open source and cross-platform app. It allows developing very fast and scalable network app that can run on Microsoft Windows, Linux, or OS X.Following are the areas where it’s perfect to use Node.js.I/O bound ApplicationsData Streaming ApplicationsData Intensive Real-time Applications (DIRT)JSON APIs based ApplicationsSingle Page ApplicationsAt the same time, it’s not suitable for heavy applications involving more of CPU usage.Q-2. What Are The Key Features Of Node.Js?Answer.Let’s look at some of the key features of Node.js.Asynchronous event driven IO helps concurrent request handling – All APIs of Node.js are asynchronous. This feature means that if a Node receives a request for some Input/Output operation, it will execute that operation in the background and continue with the processing of other requests. Thus it will not wait for the response from the previous requests.Fast in Code execution – Node.js uses the V8 JavaScript Runtime engine, the one which is used by Google Chrome. Node has a wrapper over the JavaScript engine which makes the runtime engine much faster and hence processing of requests within Node.js also become faster.Single Threaded but Highly Scalable – Node.js uses a single thread model for event looping. The response from these events may or may not signNow the server immediately. However, this does not block other operations. Thus making Node.js highly scalable. Traditional servers create limited threads to handle requests while Node.js creates a single thread that provides service to much larger numbers of such requests.Node.js library uses JavaScript – This is another important aspect of Node.js from the developer’s point of view. The majority of developers are already well-versed in JavaScript. Hence, development in Node.js becomes easier for a developer who knows JavaScript.There is an Active and vibrant community for the Node.js framework – The active community always keeps the framework updated with the latest trends in the web development.No Buffering – Node.js applications never buffer any data. They simply output the data in chunks.Q-3. Explain How Do We Decide, When To Use Node.Js And When Not To Use It?Answer.When Should We Use Node.Js?It’s ideal to use Node.js for developing streaming or event-based real-time applications that require less CPU usage such as.Chat applications.Game servers.Node.js is good for fast and high-performance servers, that face the need to handle thousands of user requests simultaneously.Good For A Collaborative Environment.It is suitable for environments where multiple people work together. For example, they post their documents, modify them by doing check-out and check-in of these documents.Node.js supports such situations by creating an event loop for every change made to the document. The “Event loop” feature of Node.js enables it to handle multiple events simultaneously without getting blocked.Advertisement Servers.Here again, we have servers that handle thousands of request for downloading advertisements from a central host. And Node.js is an ideal solution to handle such tasks.Streaming Servers.Another ideal scenario to use Node.js is for multimedia streaming servers where clients fire request’s towards the server to download different multimedia contents from it.To summarize, it’s good to use Node.js, when you need high levels of concurrency but less amount of dedicated CPU time.Last but not the least, since Node.js uses JavaScript internally, so it fits best for building client-side applications that also use JavaScript.When To Not Use Node.Js?However, we can use Node.js for a variety of applications. But it is a single threaded framework, so we should not use it for cases where the application requires long processing time. If the server is doing some calculation, it won’t be able to process any other requests. Hence, Node.js is best when processing needs less dedicated CPU time.Q-4. What IDEs Can You Use For Node.Js Development?Answer.Here is the list of most commonly used IDEs for developing node.js applications.Cloud9.It is a free, cloud-based IDE that supports, application development, using popular programming languages like Node.js, PHP, C++, Meteor and more. It provides a powerful online code editor that enables a developer to write, run and debug the app code.JetBrains WebStorm.WebStorm is a lightweight yet powerful JavaScript IDE, perfectly equipped for doing client-side and server-side development using Node.js. The IDE provides features like intelligent code completion, navigation, automated and safe refactorings. Additionally, we can use the debugger, VCS, terminal and other tools present in the IDE.JetBrains InteliJ IDEA.It is a robust IDE that supports web application development using mainstream technologies like Node.js, Angular.js, JavaScript, HTML5 and more. To enable the IDE that can do Node.js development we have to install a Node.js plugin. It provides features, including syntax highlighting, code assistance, code completion and more. We can even run and debug Node.js apps and see the results right in the IDE. It’s JavaScript debugger offers conditional breakpoints, expression evaluation, and other features.Komodo IDE.It is a cross-platform IDE that supports development in main programming languages, like Node.js, Ruby, PHP, JavaScript and more. It offers a variety of features, including syntax highlighting, keyboard shortcuts, collapsible Pane, workspace, auto indenting, code folding and code preview using built-in browser.Eclipse.It is a popular cloud-based IDE for web development using Java, PHP, C++ and more. You can easily avail the features of Eclipse IDE using the Node.js plug-in, which is
.Atom.It is an open source application built with the integration of HTML, JavaScript, CSS, and Node.js. It works on top of Electron framework to develop cross-platform apps using web technologies. Atom comes pre-installed with four UI and eight syntax themes in both dark and light colors. We can also install themes created by the Atom community or create our own if required.Q-5. Explain How Does Node.Js Work?Answer.A Node.js application creates a single thread on its invocation. Whenever Node.js receives a request, it first completes its processing before moving on to the next request.Node.js works asynchronously by using the event loop and callback functions, to handle multiple requests coming in parallel. An Event Loop is a functionality which handles and processes all your external events and just converts them to a callback function. It invokes all the event handlers at a proper time. Thus, lots of work is done on the back-end, while processing a single request, so that the new incoming request doesn’t have to wait if the processing is not complete.While processing a request, Node.js attaches a callback function to it and moves it to the back-end. Now, whenever its response is ready, an event is called which triggers the associated callback function to send this response.Let’s Take An Example Of A Grocery Delivery.Usually, the delivery boy goes to each and every house to deliver the packet. Node.js works in the same way and processes one request at a time. The problem arises when any one house is not open. The delivery boy can’t stop at one house and wait till it gets opened up. What he will do next, is to call the owner and ask him to call when the house is open. Meanwhile, he is going to other places for delivery. Node.js works in the same way. It doesn’t wait for the processing of the request to complete (house is open). Instead, it attaches a callback function (call from the owner of the house) to it. Whenever the processing of a request completes (the house is open), an event gets called, which triggers the associated callback function to send the response.To summarize, Node.js does not process the requests in parallel. Instead, all the back-end processes like, I/O operations, heavy computation tasks, that take a lot of time to execute, run in parallel with other requests.Q-6. Explain REPL In Node.Js?Answer.The REPL stands for “Read Eval Print Loop”. It is a simple program that accepts the commands, evaluates them, and finally prints the results. REPL provides an environment similar to that of Unix/Linux shell or a window console, in which we can enter the command and the system, in turn, responds with the output. REPL performs the following tasks.READIt Reads the input from the user, parses it into JavaScript data structure and then stores it in the memory.EVALIt Executes the data structure.PRINTIt Prints the result obtained after evaluating the command.LOOPIt Loops the above command until the user presses Ctrl+C two times.Q-7. Is Node.Js Entirely Based On A Single-Thread?Answer.Yes, it’s true that Node.js processes all requests on a single thread. But it’s just a part of the theory behind Node.js design. In fact, more than the single thread mechanism, it makes use of events and callbacks to handle a large no. of requests asynchronously.Moreover, Node.js has an optimized design which utilizes both JavaScript and C++ to guarantee maximum performance. JavaScript executes at the server-side by Google Chrome v8 engine. And the C++ lib UV library takes care of the non-sequential I/O via background workers.To explain it practically, let’s assume there are 100s of requests lined up in Node.js queue. As per design, the main thread of Node.js event loop will receive all of them and forwards to background workers for execution. Once the workers finish processing requests, the registered callbacks get notified on event loop thread to pass the result back to the user.Q-8. How To Get Post Data In Node.Js?Answer.Following is the code snippet to fetch Post Data using Node.js.app.use(express.bodyParser()); app.post('/', function(request, response){ console.log(request.body.user); }); Q-9. How To Make Post Request In Node.Js?Answer.Following code snippet can be used to make a Post Request in Node.js.var request = require('request'); request.post( 'http://www.example.com/action', { form: { key: 'value' } }, function (error, response, body) { if (!error && response.statusCode == 200) { console.log(body) } } ); Q-10. What Is Callback In Node.Js?Answer.We may call “callback” as an asynchronous equivalent for a function. Node.js makes heavy use of callbacks and triggers it at the completion of a given task. All the APIs of Node.js are written in such a way that they support callbacks.For example, suppose we have a function to read a file, as soon as it starts reading the file, Node.js return the control immediately to the execution environment so that the next instruction can be executed. Once file read operation is complete, it will call the callback function and pass the contents of the file as its arguments. Hence, there is no blocking or wait, due to File I/O. This functionality makes Node.js as highly scalable, using it processes a high number of requests without waiting for any function to return the expected result.Q-11. What Is Callback Hell?Answer.Initially, you may praise Callback after learning about it. Callback hell is heavily nested callbacks which make the code unreadable and difficult to maintain.Let’s see the following code example.downloadPhoto('http://coolcats.com/cat.gif', displayPhoto) function displayPhoto (error, photo) { if (error) console.error('Download error!', error) else console.log('Download finished', photo) } console.log('Download started') In this scenario, Node.js first declares the “displayPhoto” function. After that, it calls the “downloadPhoto” function and pass the “displayPhoto” function as its callback. Finally, the code prints ‘Download started’ on the console. The “displayPhoto” will be executed only after “downloadPhoto” completes the execution of all its tasks.Q-12. How To Avoid Callback Hell In Node.Js?Answer.Node.js internally uses a single-threaded event loop to process queued events. But this approach may lead to blocking the entire process if there is a task running longer than expected.Node.js addresses this problem by incorporating callbacks also known as higher-order functions. So whenever a long-running process finishes its execution, it triggers the callback associated. With this approach, it can allow the code execution to continue past the long-running task.However, the above solution looks extremely promising. But sometimes, it could lead to complex and unreadable code. More the no. of callbacks, longer the chain of returning callbacks would be. Just see the below example.With such an unprecedented complexity, it’s hard to debug the code and can cause you a whole lot of time. There are four solutions which can address the callback hell problem.1. Make Your Program Modular.It proposes to split the logic into smaller modules. And then join them together from the main module to achieve the desired result.2. Use Async Mechanism.It is a widely used Node.js module which provides a sequential flow of execution.The async module has API which passes data from one operation to other using the next callback.Another async API allows iterating over a list of items in parallel and calls back with another list of results.With the async approach, the caller’s callback gets called only once. The caller here is the main method using the async module.3. Use Promises Mechanism.Promises give an alternate way to write async code. They either return the result of execution or the error/exception. Implementing promises requires the use of <.then()> function which waits for the promise object to return. It takes two optional arguments, both functions. Depending on the state of the promise only one of them will get called. The first function call proceeds if the promise gets fulfilled. However, if the promise gets rejected, then the second function will get called.4. Use Generators.Generators are lightweight routines, they make a function wait and resume via the yield keyword. Generator functions uses a special syntax . They can also suspend and resume asynchronous operations using constructs such as promises or and turn a synchronous code into asynchronous.Q-13. Can You Create HTTP Server In Nodejs, Explain The Code Used For It?Answer.Yes, we can create HTTP Server in Node.js. We can use the command to do so.Following is the sample code.var http = require('http'); var requestListener = function (request, response) { response.writeHead(200, {'Content-Type': 'text/plain'}); response.end('Welcome Viewers\n'); } var server = http.createServer(requestListener); server.listen(8080); // The port where you want to start with. Q-14. What Is The Difference Between Nodejs, AJAX, And JQuery?Answer.The one common trait between Node.js, AJAX, and jQuery is that all of them are the advanced implementation of JavaScript. However, they serve completely different purposes.Node.Js –It is a server-side platform for developing client-server applications. For example, if we’ve to build an online employee management system, then we won’t do it using client-side JS. But the Node.js can certainly do it as it runs on a server similar to Apache, Django not in a browser.AJAX (Aka Asynchronous Javascript And XML) –It is a client-side scripting technique, primarily designed for rendering the contents of a page without refreshing it. There are a no. of large companies utilizing AJAX such as Facebook and Stack Overflow to display dynamic content.JQuery –It is a famous JavaScript module which complements AJAX, DOM traversal, looping and so on. This library provides many useful functions to help in JavaScript development. However, it’s not mandatory to use it but as it also manages cross-browser compatibility, so can help you produce highly maintainable web applications.Q-15. What Are Globals In Node.Js?Answer.There are three keywords in Node.js which constitute as Globals. These are Global, Process, and Buffer.Global.The Global keyword represents the global namespace object. It acts as a container for all other objects. If we type , it’ll print out all of them.An important point to note about the global objects is that not all of them are in the global scope, some of them fall in the module scope. So, it’s wise to declare them without using the var keyword or add them to Global object.Variables declared using the var keyword become local to the module whereas those declared without it get subscribed to the global object.Process.It is also one of the global objects but includes additional functionality to turn a synchronous function into an async callback. There is no boundation to access it from anywhere in the code. It is the instance of the EventEmitter class. And each node application object is an instance of the Process object.It primarily gives back the information about the application or the environment. – to get the execution path of the Node app. – to get the Node version currently running. – to get the server platform.Some of the other useful Process methods are as follows. – To know the memory used by Node application. – To attach a callback function that will get called during the next loop. It can cause a delay in executing a function.Buffer.The Buffer is a class in Node.js to handle binary data. It is similar to a list of integers but stores as a raw memory outside the V8 heap.We can convert JavaScript string objects into Buffers. But it requires mentioning the encoding type explicitly. – Specifies 7-bit ASCII data. – Represents multibyte encoded Unicode char set. – Indicates 2 or 4 bytes, little endian encoded Unicode chars. – Used for Base64 string encoding. – Encodes each byte as two hexadecimal chars.Here is the syntax to use the Buffer class.> var buffer = new Buffer(string, [encoding]); The above command will allocate a new buffer holding the string with as the default encoding. However, if you like to write a to an existing buffer object, then use the following line of code.> buffer.write(string) This class also offers other methods like and that allows read/write from various types of data to the buffer.Q-16. How To Load HTML In Node.Js?Answer.To load HTML in Node.js we have to change the “Content-type” in the HTML code from text/plain to text/html.Let’s see an example where we have created a static file in web server.fs.readFile(filename, "binary", function(err, file) { if(err) { response.writeHead(500, {"Content-Type": "text/plain"}); response.write(err + "\n"); response.end(); return; } response.writeHead(200); response.write(file, "binary"); response.end(); }); Now we will modify this code to load an HTML page instead of plain text.fs.readFile(filename, "binary", function(err, file) { if(err) { response.writeHead(500, {"Content-Type": "text/html"}); response.write(err + "\n"); response.end(); return; } response.writeHead(200, {"Content-Type": "text/html"}); response.write(file); response.end(); }); Q-17. What Is EventEmitter In Node.Js?Answer.Events module in Node.js allows us to create and handle custom events. The Event module contains “EventEmitter” class which can be used to raise and handle custom events. It is accessible via the following code.// Import events module var events = require('events'); // Create an eventEmitter object var eventEmitter = new events.EventEmitter(); When an EventEmitter instance encounters an error, it emits an “error” event. When a new listener gets added, it fires a “newListener” event and when a listener gets removed, it fires a “removeListener” event.EventEmitter provides multiple properties like “on” and “emit”. The “on” property is used to bind a function to the event and “emit” is used to fire an event.Q-18. How Many Types Of Streams Are Present In Node.Js?Answer.Stream in Node.js are objects that allow reading data from a source or writing data to a specific destination in a continuous fashion. In Node.js, there are four types of streams. – This is the Stream to be used for reading operation. – It facilitates the write operation. – This Stream can be used for both the read and write operations. – It is a form of a duplex Stream, which performs the computations based on the available input.All the Streams, discussed above are an instance of an “EventEmitter” class. The event thrown by the Stream varies with time. Some of the commonly used events are as follows. – This event gets fired when there is data available for reading. – The Stream fires this event when there is no more data to read. – This event gets fired when there is any error in reading or writing data. – It fires this event after it has flushed all the data to the underlying system.Q-19. List And Explain The Important REPL Commands?Answer.Following is the list of some of the most commonly used REPL commands.<.help> – It displays help for all the commands. – It displays the list of all the available commands. – Its use is to determine what command was executed in REPL previously.<.save filename> – Save the current REPL session to a file.<.load filename> – To Load the specified file in the current REPL session. – used to Terminate the current command. – To Exit from the REPL. – This command perfoms Exit from the REPL.<.break> – It leads Exitting from multiline expression.<.clear> – Exit from multiline expression.Q-20. What Is NPM In Node.Js?Answer.NPM stands for Node Package Manager. It provides following two main functionalities.It works as an Online repository for node.js packages/modules which are present at .It works as Command line utility to install packages, do version management and dependency management of Node.js packages.NPM comes bundled along with Node.js installable. We can verify its version using the following command-$ npm --version NPM helps to install any Node.js module using the following command.$ npm install For example, following is the command to install a famous Node.js web framework module called express-$ npm install express Q-21. What Is The Global Installation Of Dependencies?Answer.Globally installed packages/dependencies are stored in /npm directory. Such dependencies can be used in CLI (Command Line Interface) function of any node.js, but cannot be imported using require() in the Node application directly.To install a Node project globally use -g flag as.C:\Nodejs_WorkSpace>npm install express -g Q-22. What Is The Local Installation Of Dependencies?Answer.By default, NPM installs any dependency in the local mode. It means that the package gets installed in “node_modules” directory which is present in the same folder, where Node application is placed. Locally deployed packages are accessible via require(). Following is the syntax to install a Node project locally.C:\Nodejs_WorkSpace>npm install express Q-23. What Is Package.Json? Who Uses It?Answer.What Is ?It is a plain JSON (JavaScript Object Notation) text file which contains all metadata information about Node.js Project or application.This file should be present in the root directory of every Node.js Package or Module to describe its metadata in JSON format.The file is named as “package” because Node.js platform treats every feature as a separate component. Node.js calls these as Package or Module.Who Use It?NPM (Node Package Manager) uses file. It includes details of the Node.js application or package. This file contains a no. of different directives or elements. These directives guide NPM, about how to handle a module or package.Q-24. Does Node.Js Support Multi-Core Platforms? And Is It Capable Of Utilizing All The Cores?Answer.Yes, Node.js would run on a multi-core system without any issue. But it is by default a single-threaded application, so it can’t completely utilize the multi-core system.However, Node.js can facilitate deployment on multi-core systems where it does use the additional hardware. It packages with a Cluster module which is capable of starting multiple Node.js worker processes that will share the same port.Q-25. Which Is The First Argument Usually Passed To A Node.Js Callback Handler?Answer.Node.js core modules follow a standard signature for its callback handlers and usually the first argument is an optional error object. And if there is no error, then the argument defaults to null or undefined.Here is a sample signature for the Node.js callback handler.function callback(error, results) { // Check for errors before handling results. if ( error ) { // Handle error and return. } // No error, continue with callback handling. } Q-26. What Is Chaining Process In Node.Js?Answer.It’s an approach to connect the output of one stream to the input of another stream, thus creating a chain of multiple stream operations.Q-27. How To Create A Custom Directive In AngularJS?Answer.To create a custom directive, we have to first register it with the application object by calling the function. While invoking the method of , we need to give the name of the function implementing the logic for that directive.For example, in the below code, we have created a copyright directive which returns a copyright text.app.directive('myCopyRight', function () { return { template: '@CopyRight MyDomain.com ' }; }); Note – A custom directive should follow the camel case format as shown above.Q-28. What Is A Child_process Module In Node.Js?Answer.Node.js supports the creation of child processes to help in parallel processing along with the event-driven model.The Child processes always have three streams , child.stdout, and child.stderr. The stream of the parent process shares the streams of the child process.Node.js provides a module which supports following three methods to create a child process.exec – method runs a command in a shell/console and buffers the output.spawn – launches a new process with a given command.fork – is a special case of the spawn() method to create child processes.Q-29. What Are The Different Custom Directive Types In AngularJS?Answer.AngularJS supports a no. of different directives which also depend on the level we want to restrict them.So in all, there are four different kinds of custom directives.Element Directives (E)Attribute Directives (A)CSS Class Directives (C)Comment Directives (M)Q-30. What Is A Control Flow Function? What Are The Steps Does It Execute?Answer.It is a generic piece of code which runs in between several asynchronous function calls is known as control flow function.It executes the following steps.Control the order of execution.Collect data.Limit concurrency.Call the next step in the program.
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