Validate Sign Form Mobile

How Do I Validate Sign Form

in this video we will collect information from text fields like email address password first name and we'll make sure that this fields are not empty before we can send this information to server-side to be recorded into our database okay so I will go to my sign up view controller open it an assistant editor and before I can start reading information from text fields I need to create a few odd outlets one for each text field so I will go to my swift code and then click on email address a textual short first click on control button my keyboard drug and drop and outlet here and this will be an outlet for user email address text field create it okay and I need an outlet for each of this film so I will continue with the second one password user password text field and then user password repeat text field one for first name user first name and one for the last name the user last name text felt and I think I'm a typo end user first name text felt okay um and let me try just make sure this is user first name text field connect it and let me make let's make sure there are not two out let's create it for this one I will expand right side navigation panel and I will look for user first name yes because I made it type one and then I've renamed it I have two outlets one of them needs to be deleted otherwise we'll run into a runtime error so this one is not it does not exist user first time so I'll deleted email address first name last name repeat password password if you create an outlet and then rename it or delete it and then create a new outlet you will end up to have two outlets here and then if you run your code you'll run your mobile application you will run into a runtime error so make sure this ones are all unique I mean there are no duplicates okay so we're done with outlets now we need one more and this is for sign up button sign up buttons also like silence and a button and this outlet is going to be an action connection type action and I will call it sign up button duct okay so when user taps on signup button we are going to read text value from each of these fields and then make sure this valve text filters are not empty so I will create a variable or a constant because I'm not going to change values from from this text field anyways so I will say that user name equals user our username is user email address right we are using in our signup page we are using email address as a username so user name is a call user email address text that user password equals user password text field...