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Five Lesser-Known JavaScript Array Methods: Mastering Javascript

Exploring Lesser-Known JavaScript Array Methods

Patrick Karsh
3 min readNov 24, 2023

JavaScript arrays are incredibly versatile, offering a plethora of methods for various operations. While methods like map, filter, and reduce are widely used, there are several lesser-known methods that can be equally beneficial. In this article, we'll explore five such methods, providing examples to illustrate their usage.

Array.from()

Array.from() is a powerful method that creates a new, shallow-copied Array instance from an array-like or iterable object. This is particularly useful when dealing with objects that resemble arrays but do not have all their methods, such as NodeLists in the DOM or function arguments.

Array.of()

Array.of() creates a new Array instance with a variable number of arguments, regardless of the number or type of the arguments. This is different from the Array constructor, which behaves differently when given a single numeric argument.

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Patrick Karsh
Patrick Karsh

Written by Patrick Karsh

NYC-based Ruby on Rails and Javascript Engineer leveraging AI to explore Engineering. https://linktr.ee/patrickkarsh

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