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Merge countersignature zip code

hey guys welcome to my channel i code i am pallav and today we are going to discuss about one more operator by combined that is zip in my previous video we discussed about the combined latest and towards the end of the video i told you that in next video we will be discussing about zip we'll be showing the coupon screen the rewards screen using the zip operator so today in this video we will be continuing the same example if you want to learn about combined latest here's the link but even if you don't it's completely fine because the things that we'll be discussing today in this video they do not require previous video as a prerequisite it is just that we will be continuing the same example that's it in this video we will see that what is zip how is it different from combined latest where can we use it and how can we use it so without wasting any more time let's jump to export let's start with the very obvious question that what is zip and to answer that let's go to the official documentation and here let's look for zip so here you can see that zip is a publisher which takes other publishers as the parameters as the arguments and then returns the tuple just like combine laters do so then what is the difference between combined latest and zip and the answer is that zip will return only when all of the publishers will complete their execution just like the dispatch group works i am relating this with dispatch group so that it becomes easier to understand but it is not exactly like that the internal working of zip is different than what is from the dispatch group so the difference is that zip will pass on the values to the downstream only when all of the publishers have completed their execution while in case of combined latest it will pass the value to the downstream whenever the value of any of the publisher changes so that is what we discussed in the previous video and if you are finding this difficult to understand that what is this publisher or what is combined latest or what are we discussing about here's a link to one of my videos that i did on combined in which i discussed the combined from very basics that what is publishers subscriber operators how do they work together how can we club them how can we make a web service call using future publisher and everything else so you can have a look at that video now coming back to zip so zip is a publisher which take different publishers as the parameter and once the execution completes it passes the value to the downstream it is also available in different variants the one taking two parameters three parameters four parameters just like combined latest so that was a basic understanding about zip now...