How to get last element of an array in JavaScript?

Suppose you have an array, like this:

const colors = ['red', 'yellow', 'green', 'blue']

How can you get the last item in the array?

In this case the array has 4 items.

You know you can get the first item using colors[0], the second using colors[1] and so on.

To get the last item without knowing beforehand how many items it contains, you can use the length property to determine it, and since the array count starts at 0, you can pick the last item by referencing the <array>.length - 1 item.

In this case:

const lastItem = colors[colors.length - 1]

More js tutorials:

• The Object seal() method
• JavaScript, how to replace an item of an array
• The JavaScript `in` operator
• How to inspect a JavaScript object
• JavaScript Statements
• How to detect dark mode using JavaScript
• JavaScript Scope
• How to return the result of an asynchronous function in JavaScript
• JavaScript labeled statements