HTML DOMTokenList contains()

Does an an element has a "myStyle" class token?

let x = element.classList.contains("myStyle");

Add a "myStyle" class to an element:

const list = element.classList;
list.add("myStyle");

Remove the "myStyle" class from an element:

const list = element.classList;
list.remove("myStyle");

Description

The contains() method returns true if a DOMTokenList contains a class, otherwise false.

domtokenlist.contains(token)

Parameter	Description
token	Required. The token to check for.

Type	Description
Boolean	`true` if the list contains a class, otherwise `false`.

domtokenlist.contains() is supported in all browsers:


Chrome	IE	Edge	Firefox	Safari	Opera
Yes	10-11	Yes	Yes	Yes	Yes