MediaQueryList.onchange

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句法
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规范
浏览器兼容性
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onchange 特性为 MediaQueryList interface is an event handler property representing a function that is invoked when the change event fires, i.e when the status of media query support changes. The event object is a MediaQueryListEvent instance, which is recognised as a MediaListQuery instance in older browsers, for backwards compatibility purposes.

句法

MediaQueryList.onchange = function() { ... };

范例

var mql = window.matchMedia('(max-width: 600px)');
mql.addEventListener( "change", (e) => {
    if (e.matches) {
    /* the viewport is 600 pixels wide or less */
    console.log('This is a narrow screen — less than 600px wide.')
  } else {
    /* the viewport is more than than 600 pixels wide */
    console.log('This is a wide screen — more than 600px wide.')
  }
})

规范

规范	状态	注释
CSSOM (CSS 对象模型) 视图模块 The definition of 'onchange' in that specification.	工作草案	初始定义

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`onchange`	Chrome 45	Edge ≤79	Firefox 55	IE No	Opera Yes	Safari No	WebView Android 45	Chrome Android 45	Firefox Android 55	Opera Android Yes	Safari iOS No	Samsung Internet Android 5.0

图例

完整支持
不支持

另请参阅

元数据

最后修改： Jul 25, 2020

CSS Object Model
MediaQueryList
特性
1. 匹配
2. media
3. onchange
方法
1. addListener()
2. removeListener()
Related pages for CSSOM

在此页

句法

范例

规范

浏览器兼容性

图例

另请参阅

相关话题