Screen.pixelDepth

在此页

句法
范例
规范
浏览器兼容性
另请参阅
相关话题

Returns the bit depth of the screen. Per the CSSOM, some implementations return 24 for compatibility reasons. See the browser compatibility section for those that don't.

句法

let depth = window.screen.pixelDepth

范例

// if there is not adequate bit depth
// choose a simpler color
if ( window.screen.pixelDepth > 8 ) {
  document.style.color = "#FAEBD7";
} else {
  document.style.color = "#FFFFFF";
}

规范

规范	状态	注释
CSSOM (CSS 对象模型) 视图模块 The definition of 'Screen.pixelDepth' 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
`pixelDepth`	Chrome 40 40 Starting with version 59 this property is no longer required to always return 24.	Edge 12	Firefox Yes	IE ?	Opera Yes	Safari 6	WebView Android Yes Yes Starting with version 59 this property is no longer required to always return 24.	Chrome Android Yes Yes Starting with version 59 this property is no longer required to always return 24.	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes Yes Starting with Samsung Internet 7.0 this property is no longer required to always return 24.

图例

完整支持
兼容性未知 ?

另请参阅

Screen.colorDepth

元数据

最后修改： May 18, 2019

CSS Object Model
Screen
特性
1. availHeight
2. availLeft
3. availTop
4. availWidth
5. colorDepth
6. height
7. left
8. mozBrightness
9. mozEnabled
10. onorientationchange
11. orientation
12. pixelDepth
13. top
14. width
方法
1. lockOrientation()
2. unlockOrientation()
继承：
1. EventTarget
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