This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The size read-only property of the KeyboardLayoutMap interface returns the number of elements in the map.
var size = KeyboardLayoutMap.size()
A number.
| Specification | Status | Comment |
|---|---|---|
| Unknown The definition of 'size' in that specification. | Unknown | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 69 | No | No | No | 56 | No |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | No | No | No | No | No | No | No |
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https://developer.mozilla.org/en-US/docs/Web/API/KeyboardLayoutMap/size