Using an array literal is the easiest way to create a JavaScript Array. Syntax: const array_name = [item1, item2, ...]; It is a common practice to declare arrays with the const keyword. Learn more about const with arrays in the chapter: JS Array Const. Spaces and line breaks are not important. A declaration can span multiple lines:

This tutorial introduces you to JavaScript array type and demonstrates the unique characteristics of JavaScript arrays via examples.

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 JavaScript are zero-indexed, meaning the first element …

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 used. We can supply initial elements in the brackets: Array elements are numbered, starting with zero. We can get an element by its number in square brackets:

Apr 3, 2025 · JavaScript arrays are resizable and can contain a mix of different data types. (When those characteristics are undesirable, use typed arrays instead.)

Mar 27, 2023 · In this tutorial, we will explore how arrays work in JavaScript, their characteristics, and how to manipulate them using the most common array methods. Table of Contents. How to Create an Array in JavaScript; Array Indexing; How to Use the length Property; Multidimensional Arrays; Sparse Arrays; How to Compare Arrays in JavaScript

4 days ago · In this lesson we'll look at arrays — a neat way of storing a list of data items under a single variable name. Here we look at why this is useful, then explore how to create an array, retrieve, add, and remove items stored in an array, and more besides.

JavaScript Array flatMap() 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.

We can create an array by placing elements inside an array literal [], separated by commas. For example, Here, numbers - Name of the array. [10, 30, 40, 60, 80] - Elements of the array. Here are a few examples of JavaScript arrays: // array of strings const dailyActivities = …

In this tutorial you will learn how to create and manipulate arrays in JavaScript. Arrays are complex variables that allow us to store more than one value or a group of values under a single variable name.