KeyboardLayoutMap.has()

Experimental

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The has() method of the KeyboardLayoutMap interface returns a boolean indicating whether the object has an element with the specified key. A list of valid keys is found in the UI Events KeyboardEvent code Values spec.

Syntax

var aBoolean = KeyboardLayoutMap.has(key)

Parameters

key
The key of an element to search for in the map.

Return value

A Boolean indicating whether the specified key was found.

Example

Specification Status Comment
Keyboard Map
The definition of 'has()' in that specification.
Editor's Draft Initial definition.

Browser compatibility

BCD tables only load in the browser