CSSNumericValue: toSum() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The toSum() method of the CSSNumericValue interface converts the object's value to a CSSMathSum object to values of the specified unit.

Syntax

js
toSum(units)

Parameters

units

The units to convert to.

Return value

Exceptions

TypeError

Thrown if an invalid type was passed to the method.

Examples

js
let v = CSS.px("23").add(CSS.percent("4")).add(CSS.cm("3")).add(CSS.in("9"));
v.toString(); // => "calc(23px + 4% + 3cm + 9in)"
v.toSum("px", "percent").toString(); // => "calc(1000.39px + 4%)"

Specifications

Specification
CSS Typed OM Level 1
# dom-cssnumericvalue-tosum

Browser compatibility

BCD tables only load in the browser