Arrays: Check if an array contains a specific value

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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
12: Array Recipes