KeyboardLayoutMap: forEach() method
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 forEach()
method of the
KeyboardLayoutMap
interface executes a provided function once for
each element of the map.
The method is otherwise the same as Map.prototype.forEach()
.
Syntax
forEach(callbackFn)
forEach(callbackFn, thisArg)
Parameters
callbackFn
-
The function to execute for each element, taking three arguments:
currentValue
-
The value of the current element being processed.
index
Optional-
The index of the current element being processed.
array
Optional-
The KeyboardLayoutMap that
forEach()
is being called on.
thisArg
Optional-
Value to use as
this
(i.e., the referenceObject
) when executingcallback
.
Return value
None (undefined
).
Examples
The following example iterates every location- or layout-specific string and its associated keyboard code on an English QWERTY keyboard.
navigator.keyboard.getLayoutMap().then((keyboardLayoutMap) => {
keyboardLayoutMap.forEach((key, code) => {
console.log(`${code} keyboard code represents ${key} key`);
});
});
Specifications
Specification |
---|
ECMAScript Language Specification # sec-map.prototype.foreach |
Browser compatibility
BCD tables only load in the browser