javascript keyboard enum
KeyCode = {
BACKSPACE: 8,
TAB: 9,
ENTER: 13,
SHIFT: 16,
CTRL: 17,
ALT: 18,
PAUSE: 19,
CAPS_LOCK: 20,
ESCAPE: 27,
SPACE: 32,
PAGE_UP: 33,
PAGE_DOWN: 34,
END: 35,
HOME: 36,
LEFT_ARROW: 37,
UP_ARROW: 38,
RIGHT_ARROW: 39,
DOWN_ARROW: 40,
INSERT: 45,
DELETE: 46,
KEY_0: 48,
KEY_1: 49,
KEY_2: 50,
KEY_3: 51,
KEY_4: 52,
KEY_5: 53,
KEY_6: 54,
KEY_7: 55,
KEY_8: 56,
KEY_9: 57,
KEY_A: 65,
KEY_B: 66,
KEY_C: 67,
KEY_D: 68,
KEY_E: 69,
KEY_F: 70,
KEY_G: 71,
KEY_H: 72,
KEY_I: 73,
KEY_J: 74,
KEY_K: 75,
KEY_L: 76,
KEY_M: 77,
KEY_N: 78,
KEY_O: 79,
KEY_P: 80,
KEY_Q: 81,
KEY_R: 82,
KEY_S: 83,
KEY_T: 84,
KEY_U: 85,
KEY_V: 86,
KEY_W: 87,
KEY_X: 88,
KEY_Y: 89,
KEY_Z: 90,
LEFT_META: 91,
RIGHT_META: 92,
SELECT: 93,
NUMPAD_0: 96,
NUMPAD_1: 97,
NUMPAD_2: 98,
NUMPAD_3: 99,
NUMPAD_4: 100,
NUMPAD_5: 101,
NUMPAD_6: 102,
NUMPAD_7: 103,
NUMPAD_8: 104,
NUMPAD_9: 105,
MULTIPLY: 106,
ADD: 107,
SUBTRACT: 109,
DECIMAL: 110,
DIVIDE: 111,
F1: 112,
F2: 113,
F3: 114,
F4: 115,
F5: 116,
F6: 117,
F7: 118,
F8: 119,
F9: 120,
F10: 121,
F11: 122,
F12: 123,
NUM_LOCK: 144,
SCROLL_LOCK: 145,
SEMICOLON: 186,
EQUALS: 187,
COMMA: 188,
DASH: 189,
PERIOD: 190,
FORWARD_SLASH: 191,
GRAVE_ACCENT: 192,
OPEN_BRACKET: 219,
BACK_SLASH: 220,
CLOSE_BRACKET: 221,
SINGLE_QUOTE: 222
};
Ecample:
if (event.which == KeyCode.TAB) {
console.log("Tab was pressed");
}