Array

An array is an ordered collection of data (either primitive or object depending upon the language). Arrays are used to store multiple values in a single variable. This is compared to a variable that can only store one value. 

Each item in an array has a number attached to it, called a numeric index, that allows you to access it. In JavaScript, array's start at index zero and can be manipulated with various methods. 

What an array in JavaScript looks like:

var myArray = [1, 2, 3, 4];

var catNamesArray = ["Jacqueline", "Sophia", "Autumn"];

//Array's in JavaScript can hold different types of data, as shown above.

Learn more

General knowledge

• Array on Wikipedia

Technical reference

• Javascript Array on MDN