CSSStyleDeclaration.getPropertyPriority() - Web API 接口参考 编辑

CSSStyleDeclaration.getPropertyPriority() 方法会根据传入的CSS属性，返回一个 DOMString 来表示该属性的优先级。

Syntax

var priority = style.getPropertyPriority(property);

参数

• property 是一个DOMString，表示要检查的属性名。

返回值

• priority 是一个DOMString，用以表示属性优先级。存在，就返回（例如："important"）；不存在，则返回空字符串。

例子

下面的代码检查了margin，在CSS规则中是否被设置为 important 优先级。

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

标准

Specification	Status	Comment
CSS Object Model (CSSOM) CSSStyleDeclaration.getPropertyPriority()	Working Draft
Document Object Model (DOM) Level 2 Style Specification CSSStyleDeclaration	Obsolete

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Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
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