I Finally Understand Callbacks in JavaScript

ThankGod Ukachukwu
Published in
5 min readMar 29, 2021


Photo by Adi Goldstein on Unsplash


Internalizing callback is important. It is a concept in some programming languages which includes C, C#, Red and Rebol, Lua, Python and JavaScript.

However, in JavaScript it is as fundamental as the language.

A callback is a function passed as a function argument and called at some point in the function. Callbacks are used…