How do you create an array in JavaScript?

habtesoft
2 min readMar 14, 2023

In JavaScript, an array is a collection of values that can be of any type, including numbers, strings, objects, and other arrays. You can create an array in JavaScript using several methods.

Not a Medium member? Read this article here

Method 1: Using array literal notation One of the easiest ways to create an array in JavaScript is to use an array literal notation, which involves enclosing a comma-separated list of values within square brackets.

const myArray = [1, 2, 3, "four", { name: "John" }];
console.log(myArray); // Output: [1, 2, 3, "four", { name: "John" }]

Method 2: Using the Array constructor You can also create an array using the Array constructor. This method involves calling the Array constructor with the new keyword and passing the values to be included in the array as arguments.

const myArray = new Array(1, 2, 3, "four", { name: "John" });
console.log(myArray); // Output: [1, 2, 3, "four", { name: "John" }]

Method 3: Creating an empty array and adding elements later You can create an empty array and add elements to it later using the array’s push() method.

const myArray = [];
myArray.push(1);
myArray.push("two");
myArray.push({ name: "John" });
console.log(myArray); // Output: [1, "two", { name: "John" }]

--

--

habtesoft
habtesoft

Written by habtesoft

Passionate JavaScript developer with a focus on backend technologies. Always eager to connect and learn. Let’s talk, https://buymeacoffee.com/habtesoftat

Responses (1)