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• 句法
• 范例
• 规范
• 浏览器兼容性
• 相关话题

CSSStyleDeclaration.getPropertyPriority() method interface returns a DOMString that provides all explicitly set priorities on the CSS property.

句法

var priority = style.getPropertyPriority(property);
					

参数

• property 是 DOMString representing the property name to be checked.

返回值

• priority 是 DOMString that represents the priority (e.g. "important" ) if one exists. If none exists, returns the empty string.

范例

The following JavaScript code checks whether margin is marked as important in a CSS selector rule:

var declaration = document.styleSheets[0].cssRules[0].style;
var isImportant = declaration.getPropertyPriority('margin') === 'important';
					

规范

规范	状态	注释
CSS Object Model (CSSOM) The definition of 'CSSStyleDeclaration.getPropertyPriority()' in that specification.	工作草案
Document Object Model (DOM) Level 2 Style Specification The definition of 'CSSStyleDeclaration' in that specification.	过时

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
getPropertyPriority	Chrome 1	Edge 12	Firefox 1	IE Yes	Opera Yes	Safari 6	WebView Android 4.4	Chrome Android 18	Firefox Android 4	Opera Android Yes	Safari iOS Yes	Samsung Internet Android 1.0

图例

完整支持

完整支持

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. CSS Object Model
2. CSSStyleDeclaration
3. 特性

   1. length
   2. parentRule
4. 方法

   1. getPropertyCSSValue()
   2. getPropertyPriority()
   3. getPropertyValue()
   4. item()
   5. removeProperty()
   6. setProperty()
5. Related pages for CSSOM

   1. AnimationEvent
   2. CSS
   3. CSSConditionRule
   4. CSSGroupingRule
   5. CSSKeyframeRule
   6. CSSKeyframesRule
   7. CSSMediaRule
   8. CSSNamespaceRule
   9. CSSPageRule
   10. CSSRule
   11. CSSRuleList
   12. CSSStyleRule
   13. CSSStyleSheet
   14. CSSSupportsRule
   15. CaretPosition
   16. LinkStyle
   17. MediaQueryList
   18. MediaQueryListListener
   19. Screen
   20. StyleSheet
   21. StyleSheetList
   22. TransitionEvent