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CSSPrimitiveValue: primitiveType property

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The primitiveType read-only property of the CSSPrimitiveValue interface represents the type of a CSS value.

Note: This property was part of an attempt to create a typed CSS Object Model. This attempt has been abandoned, and most browsers do not implement it.

To achieve your purpose, you can use:

Value

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

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

Examples

js

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

Specifications

This feature was originally defined in the DOM Style Level 2 specification, but has been dropped from any standardization effort since then.

It has been superseded by a modern, but incompatible, CSS Typed Object Model API that is now on the standard track.

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
primitiveType No No 20–62 No No 7 No No 20–62 No 7 No

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/CSSPrimitiveValue/primitiveType