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.

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);
});

Specification

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This page was last modified on Dec 18, 2023 by MDN contributors.