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 …
javascript - What does $ (function () {} ); do? - Stack Overflow
Now that you know that $ is the name of the function, if you are using the jQuery library, then you are calling the function named $ and passing the argument function() {} into it.
What's the meaning of "=>" (a fat arrow formed from equal and …
Jun 20, 2017 · The wiki I linked to very succinctly describes what it is: "An arrow function expression has a shorter syntax compared to function expressions and lexically binds the this …
python - Why do some functions have underscores - Stack Overflow
May 24, 2024 · Why do some functions have underscores "__" before and after the function name? Asked 13 years, 10 months ago Modified 1 year, 5 months ago Viewed 493k times
What does -> mean in Python function definitions? - Stack Overflow
Jan 17, 2013 · PEP 3107 -- Function Annotations described the specification, defining the grammar changes, the existence of func.__annotations__ in which they are stored and, the …
What is a "static" function in C? - Stack Overflow
In C, a static function is not visible outside of its translation unit, which is the object file it is compiled into. In other words, making a function static limits its scope. You can think of a static …
What is meant with "const" at end of function declaration?
It is possible to loosen the "const function" restriction of not allowing the function to write to any variable of a class. To allow some of the variables to be writable even when the function is …
javascript - Calling vs invoking a function - Stack Overflow
Jun 16, 2018 · Up to this point, I thought "calling" and "invoking" a function meant the same thing. However, in a YouTube tutorial it said to invoke a function by calling it. My first thought was …
python - What is the meaning of single and double underscore …
What do single and double leading underscores before an object's name represent in Python?
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?