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DOMStringList: contains() method

The contains() method returns a boolean indicating whether the given string is in the list.

Syntax

js

contains(string)

Parameters

string

A string you want to check for the existence of in the list.

Return value

A boolean indicating whether the given string is in the list.

Exceptions

TypeError

Thrown if no argument is provided.

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
contains 1 12 1.5 10 ≤12.1 5.1 3 18 4 ≤12.1 5 1.0

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https://developer.mozilla.org/en-US/docs/Web/API/DOMStringList/contains