javascript

If a function is constructable, it can be called with new, i.e. new User(). If a function is callable, it can be called without new (i.e. normal function call). Functions created through function

2024 May 06

iife

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

2024 Aug 24

What is the difference between a function and a subroutine?

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

2025 May 29

What is a callback function?

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

2024 Sep 09

How do function pointers in C work?

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

2026 Jan 25

Define a function within another function in JavaScript

I have a function whose structure is similar to the above. I want to abstract task 3 into a function, bar(), but I wish to limit the access of this function to only within the scope of foo(a).

2025 Jan 01

Passing parameters to a Bash function

I am trying to search how to pass parameters in a Bash function, but what comes up is always how to pass parameter from the command line. I would like to pass parameters

2024 Sep 29

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

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

2025 Jul 25

ERROR: function does not exist and HINT: No function

LINE 1: select f(1); ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts. because there is no f() function that takes an integer as

2025 Apr 15

What''s the difference between __PRETTY_FUNCTION__,

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

2025 Jul 15

View/Download What is the function of the battery cabinet in the power distribution room [PDF]

PDF version includes complete article with source references. Suitable for printing and offline reading.