Closures Questions

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textfield in closure swift

let creatordb = database.database().reference().child("a") creatordb.querylimited(tolast: 1).observe(.childadded) { (snapshot) in
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Swift closures and error handling

Hello, i need some help with function and or possibly closures in that function. i want my function to check the firestore users collection for

Result pass Callback

How can call that commeneted line : result(paymentmethods)? same with error i want to pass. i tried it but not able to understand.
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Completion Handlers in swift 4

I have a problem i'm trying to wrap my head around relating to the use of completion handlers. i have 3 layers in my ios program, the
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Need help understanding closures

I was understanding closure and tried to do some experiments and that's when i came across this problem. when i execute code show
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Closure Javascript

I have a question about a closure in js. below is the given fonction: function multiplicationpardeux() { var chiffre = 10;
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Routing not based on roles

Laravel 5.5 question. let say the user is already authenticated and have the correct access role however you want them to perform an
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Optimizing capture lists

Is there such a thing? is there any difference between the two below? is one more "correct" than the other? all objects are properties of

Laravel eloquent foreach loop

I am having a foreach loop that goes through an array, and saves data with eloquent. and it works fine when it is like this:

JS scope access

[update] i get confirmation that i can not do that. all: i am pretty new to js scope, say i have a function

Simple Javascript Closure Issue

I know why this doesn't work, but can't find the correct way of doing it. i'm trying to build an object using a loop. the object builds

Convert Library to JavaScript closure

I have an external library of javascript functions that i need to pull into my server-side google apps script project. i'm doing this mainly for performance reasons, but
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