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.

Specifications

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Browser compatibility

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