This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.
The CSS numeric factory functionsCSS.em()
CSS.turn()
are methods that return CSSUnitValues with the value being the numeric argument and the unit being the name of the method used.CSSUnitValue.CSSUnitValue()
Syntax
CSS.number(number); CSS.percent(number); // <length> CSS.em(number); CSS.ex(number); CSS.ch(number); CSS.ic(number); CSS.rem(number); CSS.lh(number); CSS.rlh(number); CSS.vw(number); CSS.vh(number); CSS.vi(number); CSS.vb(number); CSS.vmin(number); CSS.vmax(number); CSS.cm(number); CSS.mm(number); CSS.Q(number); CSS.in(number); CSS.pt(number); CSS.pc(number); CSS.px(number); // <angle> CSS.deg(number); CSS.grad(number); CSS.rad(number); CSS.turn(number); // <time> CSS.s(number); CSS.ms(number); // <frequency> CSS.Hz(number); CSS.kHz(number); // <resolution> CSS.dpi(number); CSS.dpcm(number); CSS.dppx(number); // <flex> CSS.fr(number);
Examples
We use the CSS.vmax()
numeric factory function to create a CSSUnitValue
:
let height = CSS.vmax(50);
console.log( height ); // CSSUnitValue {value: 50, unit: "vmax"}
console.log( height.value ) // 50
console.log( height.unit ) // vmax
In this example, we set the margin on our element using the CSS.px()
factory function:
myElement.attributeStyleMap.set('margin', CSS.px(40));
let currentMargin = myElement.attributeStyleMap.get('margin');
console.log(currentMargin.value, currentMargin.unit); // 40, 'px'
Specification
Specification | Status | Comment |
CSS Object Model (CSSOM)The definition of 'Numeric Factory Functions' in that specification. | Working Draft | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome
Full support 28 |
Edge
Full support 12 |
Firefox Full support 22 Full support 22 Full support 20 Disabled' From version 20: this feature is behind the |
IE
No support No |
Opera
Full support 12.1 |
Safari
Full support 10 |
WebView Android
Full support 4.4 |
Chrome Android
Full support 28 |
Firefox Android Full support 22 Full support 22 Full support 20 Disabled' From version 20: this feature is behind the |
Opera Android
Full support 12.1 |
Safari iOS
Full support Yes |
Samsung Internet Android
Full support 1.5 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 46 |
Edge
Full support 79 |
Firefox
Full support 31 |
IE
No support No |
Opera
Full support 33 |
Safari
Full support 10 |
WebView Android
Full support 46 |
Chrome Android
Full support 46 |
Firefox Android
Full support 31 |
Opera Android
Full support 33 |
Safari iOS
Full support 10 |
Samsung Internet Android
Full support 5.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
No support No |
Edge
No support No |
Firefox
No support No |
IE
No support No |
Opera
No support No |
Safari
No support No |
WebView Android
No support No |
Chrome Android
No support No |
Firefox Android
No support No |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
No support No | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
No support No |
Edge
No support No |
Firefox
No support No |
IE
No support No |
Opera
No support No |
Safari
No support No |
WebView Android
No support No |
Chrome Android
No support No |
Firefox Android
No support No |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
No support No | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 65 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 52 |
Safari
No support No |
WebView Android
Full support 65 |
Chrome Android
Full support 65 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 78 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 65 |
Safari
No support No |
WebView Android
Full support 78 |
Chrome Android
Full support 78 |
Firefox Android
No support No |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
Full support 12.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
No support No |
Edge
No support No |
Firefox
No support No |
IE
No support No |
Opera
No support No |
Safari
No support No |
WebView Android
No support No |
Chrome Android
No support No |
Firefox Android
No support No |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
No support No | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
supports
|
Chrome Full support 61 Full support 61 Partial support 28 Notes' Version 60 or older didn't support parentheses-less one-argument version. |
Edge Partial support 12 Partial support 12 Notes' Edge doesn't support parentheses-less one-argument version. |
Firefox Full support 55 Full support 55 Partial support 22 Notes' Version 54 or older didn't support parentheses-less one-argument version. Partial support 20 Disabled' From version 20: this feature is behind the |
IE
No support No |
Opera
Full support 12.1 |
Safari
Full support 10 |
WebView Android Full support 61 Full support 61 Partial support 37 Notes' Version 60 or older didn't support parentheses-less one-argument version. |
Chrome Android Full support 61 Full support 61 Partial support 28 Notes' Version 60 or older didn't support parentheses-less one-argument version. |
Firefox Android Full support 55 Full support 55 Partial support 22 Notes' Version 54 or older didn't support parentheses-less one-argument version. Partial support 20 Disabled' From version 20: this feature is behind the |
Opera Android
Full support 12.1 |
Safari iOS
Full support Yes |
Samsung Internet Android Full support 8.0 Full support 8.0 Partial support 1.5 Notes' Samsung Internet 8.0 or older didn't support parentheses-less one-argument version. |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
No support No |
Edge
No support No |
Firefox
No support No |
IE
No support No |
Opera
No support No |
Safari
No support No |
WebView Android
No support No |
Chrome Android
No support No |
Firefox Android
No support No |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
No support No | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
No support No |
Edge
No support No |
Firefox
No support No |
IE
No support No |
Opera
No support No |
Safari
No support No |
WebView Android
No support No |
Chrome Android
No support No |
Firefox Android
No support No |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
No support No | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 | |
Chrome
Full support 66 |
Edge
Full support 79 |
Firefox
No support No |
IE
No support No |
Opera
Full support 53 |
Safari
No support No |
WebView Android
Full support 66 |
Chrome Android
Full support 66 |
Firefox Android
No support No |
Opera Android
Full support 47 |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 |
Legend
- Full support
- Full support
- Partial support
- Partial support
- No support
- No support
- Experimental. Expect behavior to change in the future.'
- Experimental. Expect behavior to change in the future.
- See implementation notes.'
- See implementation notes.
- User must explicitly enable this feature.'
- User must explicitly enable this feature.
See also
CSS numeric factory functions by Mozilla Contributors is licensed under CC-BY-SA 2.5.