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

I have used a method to test if any specific key is pressed by storing the currently pressed key codes in an array:

var keysPressed = [],
    shiftCode = 16;

$(document).on("keyup keydown", function(e) {
    switch(e.type) {
        case "keydown" :
            keysPressed.push(e.keyCode);
            break;
        case "keyup" :
            var idx = keysPressed.indexOf(e.keyCode);
            if (idx >= 0)
                keysPressed.splice(idx, 1);
            break;
    }
});

$("a.shifty").on("click", function(e) {
    e.preventDefault();
    console.log("Shift Pressed: " + (isKeyPressed(shiftCode) ? "true" : "false"));
});

function isKeyPressed(code) {
    return keysPressed.indexOf(code) >= 0;
}

Here is the jsfiddle