$ = function() { alert('I am in the $ function'); } JQuery is a very famous JavaScript library and they have decided to put their entire framework inside a function named jQuery. To make it easier for people to …

508 It's all about variable scoping. Variables declared in the self executing function are, by default, only available to code within the self executing function. This allows code to be written without concern of …

Correction suggested by Guffa: The function is executed right after it's created, not after it is parsed. The entire script block is parsed before any code in it is executed. Also, parsing code doesn't …

Calling the function with () in a return statement executes the function, and returns whatever value was returned by the function. It is similar to calling var x = b();, but instead of assigning the return value of …

Mar 8, 2012 · 12 The function* type looks like it acts as a generator function for processes that can be iterated. C# has a feature like this using "yield return" see 1 and see 2 Essentially this returns each …

466 I have a Python function which takes several arguments. Some of these arguments could be omitted in some scenarios.

32 I would like to return two values from a function in two separate variables. What would you expect it to look like on the calling end? You can't write a = select_choice(); b = select_choice() because that …

358 Function pointers in C can be used to perform object-oriented programming in C. For example, the following lines is written in C:

A function is outside the namespace of the rest of the program. It is like a separate program that can have the same variable names as used in the calling program, and whatever it does to them does …

May 24, 2024 · Why do some functions have underscores "__" before and after the function name? Asked 14 years ago Modified 1 year, 8 months ago Viewed 498k times