MediaQueryList.removeListener()

Deprecated

This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The removeListener() method of the MediaQueryList interface removes a listener from the MediaQueryListener.

In older browsers MediaQueryList did not yet inherit from EventTarget, so this method was provided as an alias of EventTarget.removeEventListener(). Use removeEventListener() instead of removeListener() if it is available in the browsers you need to support.

Syntax

MediaQueryList.removeListener(func)

Parameters

func
A function or function reference representing the callback function you want to remove.

Return value

Void.

Example

var paragraph = document.querySelector('p');
var mediaQueryList = window.matchMedia('(max-width: 600px)');

function screenTest(e) {
  if (e.matches) {
    /* the viewport is 600 pixels wide or less */
    paragraph.textContent = 'This is a narrow screen — 600px wide or less.';
    document.body.style.backgroundColor = 'pink';
  } else {
    /* the viewport is more than than 600 pixels wide */
    paragraph.textContent = 'This is a wide screen — more than 600px wide.';
    document.body.style.backgroundColor = 'aquamarine';
  }
}

mediaQueryList.addListener(screenTest);

// Later on, when it is no longer needed
mediaQueryList.removeListener(screenTest);

Specifications

Specification Status Comment
CSS Object Model (CSSOM) View Module
The definition of 'removeListener' in that specification.
Working Draft Initial definition

Browser compatibility

BCD tables only load in the browser

See also