CSSPrimitiveValue.primitiveType

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primitiveType 只读特性在 CSSPrimitiveValue interface represents the type of a CSS value.

句法

type = cssPrimitiveValue.primitiveType;

值

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

常量	描述
`CSS_ATTR`	The value is an `attr()` function. The value can be obtained by using the `getStringValue()` 方法。
`CSS_CM`	The value is a `<length>` in centimeters. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_COUNTER`	The value is a counter or counters function. The value can be obtained by using the `getCounterValue()` 方法。
`CSS_DEG`	The value is an `<angle>` in degrees. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_DIMENSION`	The value is a `<number>` with an unknown dimension. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_EMS`	The value is a `<length>` in em units. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_EXS`	The value is a `<length>` in ex units. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_GRAD`	The value is an `<angle>` in grads. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_HZ`	The value is a `<frequency>` in Hertz. The value can be obtained by using the getFloatValue method.
`CSS_IDENT`	The value is an identifier. The value can be obtained by using the `getStringValue()` 方法。
`CSS_IN`	The value is a `<length>` in inches. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_KHZ`	The value is a `<frequency>` in Kilohertz. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_MM`	The value is a `<length>` in millimeters. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_MS`	The value is a `<time>` in milliseconds. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_NUMBER`	The value is a simple `<number>` . The value can be obtained by using the `getFloatValue()` 方法。
`CSS_PC`	The value is a `<length>` in picas. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_PERCENTAGE`	The value is a `<percentage>` . The value can be obtained by using the `getFloatValue()` 方法。
`CSS_PT`	The value is a `<length>` in points. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_PX`	The value is a `<length>` in pixels. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_RAD`	The value is an `<angle>` in radians. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_RECT`	The value is a `rect()` function. The value can be obtained by using the `getRectValue()` 方法。
`CSS_RGBCOLOR`	The value is an `<color>` . The value can be obtained by using the `getRGBColorValue()` 方法。
`CSS_S`	The value is a `<time>` in seconds. The value can be obtained by using the `getFloatValue()` 方法。
`CSS_STRING`	The value is a `<string>` . The value can be obtained by using the `getStringValue()` 方法。
`CSS_UNKNOWN`	The value is not a recognized CSS2 value. The value can only be obtained by using the `cssText` 属性。
`CSS_URI`	The value is a `<uri>` . The value can be obtained by using the `getStringValue()` 方法。

范例

var cs = window.getComputedStyle(document.body);
var cssValue = cs.getPropertyCSSValue("color");
console.log(cssValue.primitiveType);

规范

规范	状态	注释
Document Object Model (DOM) Level 2 Style Specification The definition of 'CSSPrimitiveValue.primitiveType' in that specification.	过时	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
`primitiveType` 弃用	Chrome 不支持 No	Edge 不支持 No	Firefox 不支持 ? — 62	IE ?	Opera 不支持 No	Safari ?	WebView Android 不支持 No	Chrome Android 不支持 No	Firefox Android 不支持 4 — 62	Opera Android ?	Safari iOS ?	Samsung Internet Android 不支持 No

图例

不支持
兼容性未知 ?
弃用。不要用于新网站。

另请参阅

CSSStyleDeclaration.getPropertyCSSValue()

元数据

最后修改： 2019 年 3 月 23 日

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