includes

The includes() method checks if the item exists in the array or not.

Syntax

array.includes(item)

The includes() method attaches to the right side of an array variable using the . operator. It takes in a parameter and checks if the given parameter exists in the array or not. It returns a boolean value.

Example

const randomArray = [1,2,3,4,5,'hello'];

console.log(randomArray.includes('hello')); // Prints: true

console.log(randomArray.includes(5000)); // Prints: false

The includes() checks if the item exists, if it does then it returns true, else it returns false.