KeyboardLayoutMap: size property
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: 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.
The property is otherwise the same as Map.prototype.size
.
Value
A number.
Examples
The following example get the count of the location- or layout-specific string and its associated keyboard code on an English QWERTY keyboard.
js
navigator.keyboard.getLayoutMap().then((keyboardLayoutMap) => {
console.log(keyboardLayoutMap.size);
});
Specifications
Specification |
---|
ECMAScript® 2025 Language Specification # sec-get-map.prototype.size |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
size |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
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.