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CSSValue.cssValueType - Web APIs 编辑

The cssValueType read-only property of the CSSValue interface represents the type of the current computed CSS property value.

Syntax

cssValueType = cssValue.cssValueType;

Value

An unsigned short representing a code defining the type of the value. Possible values are:

Constant	Description
`CSS_CUSTOM`	The value is a custom value.
`CSS_INHERIT`	The value is inherited and the `cssText` contains `"inherit"`.
`CSS_PRIMITIVE_VALUE`	The value is a primitive value and an instance of the `CSSPrimitiveValue` interface can be obtained by using binding-specific casting methods on this instance of the `CSSValue` interface.
`CSS_VALUE_LIST`	The value is a `CSSValue` list and an instance of the `CSSValueList` interface can be obtained by using binding-specific casting methods on this instance of the `CSSValue` interface.

Example

var styleDeclaration = document.styleSheets[0].cssRules[0].style;
var cssValue = styleDeclaration.getPropertyCSSValue("color");
console.log(cssValue.cssValueType);