CSSValue: cssValueType 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 cssValueType read-only property of the
CSSValue interface represents the type of the current computed CSS
property 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:
- the untyped CSS Object Model, widely supported, or
- the modern CSS Typed Object Model API, less supported and considered experimental.
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.
|
Examples
const styleDeclaration = document.styleSheets[0].cssRules[0].style;
const cssValue = styleDeclaration.getPropertyCSSValue("color");
console.log(cssValue.cssValueType);
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It has been superseded by a modern, but incompatible, CSS Typed Object Model API that is now on the standard track.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
BCD tables only load in the browser