shiftkey is not working

[arenadeveloper]

Hi i am trying to check if user has pressed shiftkey with click

$('input').on('ifClicked', function(event){
console.log(event.shiftKey);
var box = $('.i-checks');
});

it always returns undefined. Can you help me.
Another thing is the multiselect feature available with pressing shiftkey.

[DixxieFlatline]

Same issue here.
JS console shows that the event doesn't even have the which or keyCode properties.

[NoMan2000]

Here's the fix:

var shiftKey = window.event.shiftKey;

This will bring in the global window event object, which will detect if the shift key is pressed down.