这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

onchange event handler of the PermissionStatus interface is called whenever the PermissionStatus.state 特性改变。

句法

PermissionStatus.onchange = function() { ... }
PermissionStatus.addEventListener('change', function() { ... })
					

范例

navigator.permissions.query({name:'geolocation'}).then(function(permissionStatus) {
  console.log('geolocation permission state is ', permissionStatus.state);
  permissionStatus.onchange = function() {
    console.log('geolocation permission state has changed to ', this.state);
  };
});
					

规范

规范 状态 注释
权限
The definition of 'onchange' in that specification.
工作草案 初始定义。

浏览器兼容性

The compatibility table in 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 43 Edge 79 Firefox 46 IE No Opera Yes Safari No WebView Android No Chrome Android 43 Firefox Android 46 Opera Android Yes Safari iOS No Samsung Internet Android 4.0

图例

完整支持

完整支持

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

元数据

  • 最后修改: