Are Up, Down, Left, Right Arrow KeyCodes always the same?

Question

As the title suggests, in my code I use the following codes:

• Left: 37
• Up: 38
• Right: 39
• Down: 40

And check for those key codes to determine my action. My question is, do those always remain the same? If I were to use a DVORAK keyboard, or a non-English keyboard, would those key codes remain the same?

Along the same line, is there a preferred method for detecting those keystrokes?

Currently, I do it as follows:

    var Key = {         _pressed: {},         LEFT: 37,         UP: 38,         RIGHT: 39,         DOWN: 40,          isDown: function (keyCode) {             return this._pressed[keyCode];         },          onKeydown: function (event) {             this._pressed[event.keyCode] = true;              if (Key.isDown(Key.UP))                 //do up action             else if (Key.isDown(Key.DOWN)) {                 //do down action             }             delete this._pressed[event.keyCode];         }     }; 

Answer 1

Yes, arrow key keycodes are always the same, regardless of the keyboard layout.

I regularly use different keyboard layouts (Dvorak, Russian, Ukrainian, Hebrew, Spanish) and I have tried all of them in JavaScript and they give consistent results for the arrow keys.