JavaScript Map Function Cheatsheet

Definition: The map function is a higher-order function that takes an array and returns a new array with the same number of elements, but with each element transformed according to the provided function.

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Sometimes it feels like I’ve been writing Javascript forever, like there’s no limit to the number of commands and variations available. And if you’re anything like me, you know that keeping up with all these options is a bit overwhelming! That’s why I created this handy Javascript map command cheatsheet — so developers of all levels can better navigate their way through this ever-growing programming language. Whether you’re new to coding or a seasoned pro, I’m confident this quick reference guide will be invaluable in helping make the most of your Javascript Map command endeavors!

Syntax:

Parameters:

• function: The function to run for each element in the array. This function takes 3 arguments:
• currentValue: The current element being processed in the array.
• index: The index of the current element being processed in the array.
• array: The array that the map method was called upon.