For set arrow of keyboard event ( Up, Down, Left & Right )
_keyArrow(function(){
_printTo("display_key","LEFT");
},function(){
_printTo("display_key","RIGHT");
},function(){
_printTo("display_key","UP");
},function(){
_printTo("display_key","DOWN");
});
For set custom keyboard event
_keyCustom(function(){
_printTo("display_key","BACKSPACE");
},_keyCode.backspace);
You can set custom with key code on this below :
const _keyCode = {
space_bar: 32,
backspace: 8,
clear: 12,
tab: 9,
ctrl: 17,
enter: 13,
alt: 18,
caps_lock: 20,
escape: 27,
shift: 16,
home: 36,
end: 35,
insert: 45,
delete: 46,
f1: 112,
f2: 113,
f3: 114,
f4: 115,
f5: 116,
f6: 117,
f7: 118,
f8: 119,
f9: 120,
f10: 121,
f11: 122,
f12: 123,
semi_colon: 186,
comma: 188,
num_lock: 144,
minus: 173,
win_menu: 93,
add: 107,
divide: 111,
next: 176,
previous: 177,
left: 37,
right: 39,
up: 38,
down: 40
};