CSSNumericValue.toSum()
Draft: This page is not complete.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
 The toSum() method of the CSSNumericValue interface converts the object's value to a CSSMathSum object to values of the specified unit. 
Syntax
var cssMathSum = CSSNumericValue.toSum(units);
Parameters
- units
 -  
The units to convert to.
 
Return value
Exceptions
- SyntaxError
 -  
undefined
 - TypeError
 -  
Indicates that an invalid type was passed to the method.
 
Examples
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
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
toSum | 
66  | 
79  | 
No  | 
No  | 
53  | 
No  | 
66  | 
66  | 
No  | 
47  | 
No  | 
9.0  | 
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    https://developer.mozilla.org/en-US/docs/Web/API/CSSNumericValue/toSum