CSSMathSum
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
The CSSMathSum interface of the CSS Typed Object Model API represents the result obtained by calling add(), sub(), or toSum() on CSSNumericValue.
A CSSMathSum is the object type returned when the StylePropertyMapReadOnly.get() method is used on a CSS property whose value is created with a calc() function.
Constructor
CSSMathSum()Experimental-
Creates a new
CSSMathSumobject.
Instance properties
CSSMathSum.values-
Returns a
CSSNumericArrayobject which contains one or moreCSSNumericValueobjects.
Static methods
The interface may also inherit methods from its parent interface, CSSMathValue.
Instance methods
The interface may also inherit methods from its parent interface, CSSMathValue.
Examples
We create an element with a width determined using a calc() function, then console.log() the operator and values, and dig into the values a bit.
We assign a width
We add the JavaScript
The specification is still evolving. In the future we may write the last three lines as:
Specifications
| Specification |
|---|
| CSS Typed OM Level 1 # cssmathsum |