KeyboardLayoutMap: forEach() method

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 reference Object) when executing callback.

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

Browser compatibility

See also

• Map.prototype.forEach()