This feature is not Baseline because it does not work in some of the most widely-used browsers.
The sub() method of the CSSNumericValue interface subtracts a supplied number from the CSSNumericValue.
sub(number)
numberEither a number or a CSSMathSum.
TypeErrorThrown if an invalid type was passed to the method.
let mathSum = CSS.px("23")
.sub(CSS.percent("4"))
.sub(CSS.cm("3"))
.sub(CSS.in("9"));
// Prints "calc(23px - 4% - 3cm - 9in)"
console.log(mathSum.toString());
| Specification |
|---|
| CSS Typed OM Level 1> # dom-cssnumericvalue-sub> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
sub |
66 | 79 | No | 53 | 16.4 | 66 | No | 47 | 16.4 | 9.0 | 66 | 16.4 |
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https://developer.mozilla.org/en-US/docs/Web/API/CSSNumericValue/sub