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

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
toSum

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
See implementation notes.