it is a three.js extension to keep the current state of the keyboard. It is possible to query it at any time. No need of an event. This is particularly convenient in loop driven case, like in 3D demos or games.

Here is the basic example live and its source. Another one which handle norepeat keydown event and its source. Another one which use it standalone and its source.

You can install it manually. Just do

<script src='threex.keyboardstate.js'></script>

You can install with bower.

bower install threex.keyboardstate

Step 1: Create the object

var keyboard	= new THREEx.KeyboardState();

Step 2: Query the keyboard state

This will return true if shift and A are pressed, false otherwise

keyboard.pressed("shift+A")

Step 3: Stop listening to the keyboard

keyboard.destroy()

NOTE: this library may be nice as standaline. independant from three.js