JQuery or [removed] How determine if shift key being pressed while clicking anchor tag hyperlink?

Question

I have an anchor tag that calls a JavaScript function.

With or without JQuery how do I determine if the shift key is down while the link is clicked?

The foll

Answer 1

The excellent JavaScript library KeyboardJS handles all types of key presses including the SHIFT key. It even allows specifying key combinations such as first pressing CTRL+x and then a.

KeyboardJS.on('shift', function() { ...handleDown... }, function() { ...handleUp... });

If you want a simple version, head to the answer by @tonycoupland):

var shiftHeld = false;
$('#control').on('mousedown', function (e) { shiftHeld = e.shiftKey });