CSSPrimitiveValue
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 CSSPrimitiveValue interface derives from the CSSValue interface and represents the current computed value of a CSS property.
Note: This interface 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.
This interface represents a single CSS value. It may be used to determine the value of a specific style property currently set in a block or to set a specific style property explicitly within the block. An instance of this interface might be obtained from the getPropertyCSSValue() method of the CSSStyleDeclaration interface. A CSSPrimitiveValue object only occurs in a context of a CSS property.
Conversions are allowed between absolute values (from millimeters to centimeters, from degrees to radians, and so on) but not between relative values. (For example, a pixel value cannot be converted to a centimeter value.) Percentage values can't be converted since they are relative to the parent value (or another property value). There is one exception for color percentage values: since a color percentage value is relative to the range 0-255, a color percentage value can be converted to a number (see also the RGBColor interface).
Instance properties
Inherits properties from its parent, CSSValue.
CSSPrimitiveValue.primitiveTypeRead only-
An
unsigned shortrepresenting the type of the value. Possible values are:Constant Description CSS_ATTRThe value is an attr()function. The value can be obtained by using thegetStringValue()method.CSS_CMThe value is a <length>in centimeters. The value can be obtained by using thegetFloatValue()method.CSS_COUNTERThe value is a counter or counters function. The value can be obtained by using the getCounterValue()method.CSS_DEGThe value is an <angle>in degrees. The value can be obtained by using thegetFloatValue()method.CSS_DIMENSIONThe value is a <number>with an unknown dimension. The value can be obtained by using thegetFloatValue()method.CSS_EMSThe value is a <length>in em units. The value can be obtained by using thegetFloatValue()method.CSS_EXSThe value is a <length>in ex units. The value can be obtained by using thegetFloatValue()method.CSS_GRADThe value is an <angle>in grads. The value can be obtained by using thegetFloatValue()method.CSS_HZThe value is a <frequency>in Hertz. The value can be obtained by using the getFloatValue method.CSS_IDENTThe value is an identifier. The value can be obtained by using the getStringValue()method.CSS_INThe value is a <length>in inches. The value can be obtained by using thegetFloatValue()method.CSS_KHZThe value is a <frequency>in Kilohertz. The value can be obtained by using thegetFloatValue()method.CSS_MMThe value is a <length>in millimeters. The value can be obtained by using thegetFloatValue()method.CSS_MSThe value is a <time>in milliseconds. The value can be obtained by using thegetFloatValue()method.CSS_NUMBERThe value is a simple <number>. The value can be obtained by using thegetFloatValue()method.CSS_PCThe value is a <length>in picas. The value can be obtained by using thegetFloatValue()method.CSS_PERCENTAGEThe value is a <percentage>. The value can be obtained by using thegetFloatValue()method.CSS_PTThe value is a <length>in points. The value can be obtained by using thegetFloatValue()method.CSS_PXThe value is a <length>in pixels. The value can be obtained by using thegetFloatValue()method.CSS_RADThe value is an <angle>in radians. The value can be obtained by using thegetFloatValue()method.CSS_RECTThe value is a rect()function. The value can be obtained by using thegetRectValue()method.CSS_RGBCOLORThe value is an <color>. The value can be obtained by using thegetRGBColorValue()method.CSS_SThe value is a <time>in seconds. The value can be obtained by using thegetFloatValue()method.CSS_STRINGThe value is a <string>. The value can be obtained by using thegetStringValue()method.CSS_UNKNOWNThe value is not a recognized CSS2 value. The value can only be obtained by using the cssTextattribute.CSS_URIThe value is a <url>. The value can be obtained by using thegetStringValue()method.
Instance methods
CSSPrimitiveValue.getCounterValue()-
This method is used to get the counter value. If this CSS value doesn't contain a counter value, a
DOMExceptionis raised. Modification to the corresponding style property can be achieved using theCounterinterface. CSSPrimitiveValue.getFloatValue()-
This method is used to get a float value in a specified unit. If this CSS value doesn't contain a float value or can't be converted into the specified unit, a
DOMExceptionis raised. CSSPrimitiveValue.getRGBColorValue()-
This method is used to get the RGB color. If this CSS value doesn't contain a RGB color value, a
DOMExceptionis raised. Modification to the corresponding style property can be achieved using theRGBColorinterface. CSSPrimitiveValue.getRectValue()-
This method is used to get the Rect value. If this CSS value doesn't contain a rect value, a
DOMExceptionis raised. Modification to the corresponding style property can be achieved using theRectinterface. CSSPrimitiveValue.getStringValue()-
This method is used to get the string value. If the CSS value doesn't contain a string value, a
DOMExceptionis raised. CSSPrimitiveValue.setFloatValue()-
A method to set the float value with a specified unit. If the property attached with this value can not accept the specified unit or the float value, the value will be unchanged and a
DOMExceptionwill be raised. CSSPrimitiveValue.setStringValue()-
A method to set the string value with the specified unit. If the property attached to this value can't accept the specified unit or the string value, the value will be unchanged and a
DOMExceptionwill be raised.
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
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CSSPrimitiveValue
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getCounterValue
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getFloatValue
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getRGBColorValue
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getRectValue
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getStringValue
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primitiveType
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setFloatValue
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setStringValue
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
- Deprecated. Not for use in new websites.