Top "Closures" questions

A closure is a first-class function that refers to (closes over) variables from the scope in which it was defined.

Example of a circular reference in Javascript?

I was wondering if anyone has a good, working example of a circular reference in javascript? I know this is …

javascript closures
Javascript: Get access to local variable or variable in closure by its name

Possible Duplicate: How can I access local scope dynamically in javascript? Hi all. We all know that you can access …

javascript function variables local closures
How do lexical closures work?

While I was investigating a problem I had with lexical closures in Javascript code, I came along this problem in …

python closures lazy-evaluation late-binding python-closures
How do I run Asynchronous callbacks in Playground

Many Cocoa and CocoaTouch methods have completion callbacks implemented as blocks in Objective-C and Closures in Swift. However, when trying …

asynchronous callback closures swift swift-playground
Two functions with the same name in JavaScript - how can this work?

As far as I know, function foo() { aaa(); } is just var foo = function(){ aaa() } in JavaScript. So adding function foo() { …

javascript function closures strict-mode
Calling closure assigned to object property directly

I would like to be able to call a closure that I assign to an object's property directly without reassigning …

php object properties closures
setTimeout() inside JavaScript Class using "this"

I am trying to use setTimeout() inside a class function in JavaScript. The setTimeout() is supposed to trigger another method …

javascript oop closures
optional closure and check if it is nil

So what I want to have is a class that may get a closure passed to it in a function, …

swift closures block
How to inject variable into scope with a decorator?

[Disclaimer: there may be more pythonic ways of doing what I want to do, but I want to know how …

python scope closures decorator python-decorators
PHP 5.4 - 'closure $this support'

I see that the new planned features for PHP 5.4 are: traits, array dereferencing, a JsonSerializable interface and something referred to …

php closures