You can check if an array contains a value using the includes() method.

Here’s an example:

const list = [1, 2, 3, 4]

list.includes(1) //true
list.includes(5) //false

Lessons in this unit:

0:	Introduction
1:	Number of items in an array
2:	Create a new array from an existing array
3:	Adding an item to an existing array
4:	Adding at the beginning of an array
5:	Adding multiple items to the array
6:	Removing an item from an array
7:	Modifying an existing array without mutating it
8:	Arrays of arrays
9:	Filling an array
10:	Array destructuring
11:	▶︎ Check if an array contains a specific value