JavaScript Array includes()

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.includes("Mango");

Start the search at position 3:

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.includes("Banana", 3);

Description

The includes() method returns true if an array contains a specified value.

The includes() method returns false if the value is not found.

The includes() method is case sensitive.

array.includes( element, start)

Parameter	Description
element	Required. The value to search for.
start	Optional. Start position. Default is 0.

Type	Description
A boolean	`true` if the value is found, otherwise `false`.

includes() is an ECMAScript7 (ES7) feature.

ES7 (JavaScript 2016) is supported in all modern browsers:


Chrome	Edge	Firefox	Safari	Opera
Yes	Yes	Yes	Yes	Yes

includes() is not supported in internet Explorer or Edge 13 (or earlier).