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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'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 …

  3. 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 …

  4. Defining and calling function in one step - Stack Overflow

    Dec 30, 2015 · Is there a way in Javascript to define a function and immediately call it, in a way that allows it to be reused? I know you can do one-off anonymous functions: (function(i) { var …

  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. Functions that return a function: what is the difference between ...

    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 …

  8. What is the difference between a "function" and a "procedure"?

    Apr 6, 2009 · A function returns a value and a procedure just executes commands. The name function comes from math. It is used to calculate a value based on input. A procedure is a set …

  9. syntax - What does %>% function mean in R? - Stack Overflow

    Nov 25, 2014 · I have seen the use of %>% (percent greater than percent) function in some packages like dplyr and rvest. What does it mean? Is it a way to write closure blocks in R?

  10. 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 = …