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.

Apr 3, 2025 · This example shows three ways to create new array: first using array literal notation, then using the Array() constructor, and finally using String.prototype.split() to build the array …

Jan 18, 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 …

Jun 8, 2024 · There exists a special data structure named Array, to store ordered collections. There are two syntaxes for creating an empty array: Almost all the time, the second syntax is …

Mar 27, 2023 · In JavaScript, an array is an object constituted by a group of items having a specific order. Arrays can hold values of mixed data types and their size is not fixed. You can …

Feb 10, 2025 · In JavaScript, an array is an ordered list of values. Each value is called an element, and each element has a numeric position in the array, known as its index. Arrays in …

Explore JavaScript array functions in detail with examples and practical use cases. Learn how to leverage these methods to simplify your code and boost efficiency.

May 8, 2025 · Learn how to create, modify, and work with JavaScript arrays using methods like push, pop, map, filter, and multi-dimensional arrays.

Apr 18, 2025 · What an array is — a structure that holds a list of variables. The syntax of arrays — [a, b, c] and the accessor syntax, myArray[x]. Modifying array values with myArray[x] = y. …

Dec 31, 2023 · Arrays provide a lot of methods. To make things easier, in this chapter, they are split into groups. We already know methods that add and remove items from the beginning or …