MediaQueryList.removeListener()

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

This is basically an alias for EventTarget.removeEventListener(), for backwards compatibility purposes — in older browsers you could use removeEventListener() instead.

Syntax

MediaQueryList.removeListener(func)

Parameters

func
A function or function reference representing the callback function you want to remove. In the original implementation, the callback was a non-standard MediaQueryListListener object. In the new implementation the standard event mechanism is used, and the callback is a standard function.

Return value

Void.

Examples

var mql = window.matchMedia('(max-width: 600px)');

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

mql.addListener(screenTest);

// Later on, when it is no longer needed
mql.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

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
removeListenerChrome Full support 9Edge Full support 12Firefox Full support 6IE Full support 10Opera Full support 12.1Safari Full support 5.1WebView Android Full support YesChrome Android Full support 18Firefox Android Full support YesOpera Android Full support YesSafari iOS Full support 5Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also