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  1. javascript - What does $ (function () {} ); do? - Stack Overflow

    A function of that nature can be called at any time, anywhere. jQuery (a library built on Javascript) has built in functions that generally required the DOM to be fully rendered before being called.

  2. What is the purpose of a self executing function in javascript?

    Actually, the above function will be treated as function expression without a name. The main purpose of wrapping a function with close and open parenthesis is to avoid polluting the global …

  3. What's the difference between __PRETTY_FUNCTION__, …

    Dec 29, 2023 · About __func__: "The identifier __func__ is implicitly declared by the translator as if, immediately following the opening brace of each function definition, the declaration: static …

  4. ES6 immediately invoked arrow function - Stack Overflow

    Jan 4, 2016 · In normal scripts, the value would be discarded, but here, the code must be internally mangled (like wrapping the entire statement with a function context and a return …

  5. What does the exclamation mark do before the function?

    Mar 15, 2023 · (function(){})(); Lastly, ! makes the expression return a boolean based on the return value of the function. Usually, an immediately invoked function expression (IIFE) doesn’t …

  6. language agnostic - What is a callback function? - Stack Overflow

    May 5, 2009 · A callback function is a function which is: accessible by another function, and is invoked after the first function if that first function completes A nice way of imagining how a …

  7. Passing functions with arguments to another function in Python?

    Is it possible to pass functions with arguments to another function in Python? Say for something like: def perform (function): return function () But the functions to be passed will have argume...

  8. How can I return two values from a function in Python?

    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 = …

  9. Why use named function expressions? - Stack Overflow

    Mar 11, 2013 · Using named function expressions is better, when you want to be able to reference the function in question without having to rely on deprecated features such as arguments.callee.

  10. JavaScript error: "is not a function" - Stack Overflow

    It was attempted to call a value like a function, but the value is not actually a function. Some code expects you to provide a function, but that didn't happen.