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JavaScript provides a variety of methods to manipulate arrays. Here are some of the most commonly used methods:
Adding and Removing Elements
push()
Adds one or more elements to the end of an array and returns the new length of the array.
const fruits = ["Banana", "Orange", "Apple"];fruits.push("Mango"); // ["Banana", "Orange", "Apple", "Mango"]Copied!✕Copypop()
Removes the last element from an array and returns that element.
const fruits = ["Banana", "Orange", "Apple"];fruits.pop(); // ["Banana", "Orange"]Copied!✕Copyunshift()
Adds one or more elements to the beginning of an array and returns the new length of the array.
const fruits = ["Banana", "Orange"];fruits.unshift("Apple"); // ["Apple", "Banana", "Orange"]Copied!✕Copyshift()
Removes the first element from an array and returns that element.
const fruits = ["Banana", "Orange", "Apple"];fruits.shift(); // ["Orange", "Apple"]Copied!✕CopyIterating Over Arrays
forEach()
Executes a provided function once for each array element.
JavaScript Array Methods - W3Schools
Array - JavaScript | MDN
Feb 24, 2026 · Several of the built-in array methods (e.g., join(), slice(), indexOf(), etc.) take into account the value of an array's length property when they're called. Other methods (e.g., push(), splice(), etc.) …
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This blog post will serve as a comprehensive guide to JavaScript array methods, covering their fundamental concepts, usage, common practices, and best practices.
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