Web Reference: ES2019 added the Array flatMap() method to JavaScript. The flatMap() method first maps all elements of an array and then creates a new array by flattening the array. This section provides you with the JavaScript Array methods that allow you to manipulate arrays effectively. Aug 5, 2025 · To help you perform common tasks efficiently, JavaScript provides a wide variety of array methods. These methods allow you to add, remove, find, and transform array elements with ease.
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