How to find out the key pressed on keyup or keypress event when dollar key is pressed

Question

The below method returns any key from A-Z and 0-9 and when I pressed shift key + 4 its returns the same code 52.

function keyUpEvent(e)//onkeyup event
{
    var chr = String.fromCharCode(e.keyCode);//converts the keycode into a character
    alert(chr);//alerts the character
}

But I need to show the $ or % when the respective key with combination of shift key is pressed.

Answer 1

i'd go with something like this:

$(function () {
    $(document).on('keyup keydown keypress', function (event) {
        if (event.keyCode == 52 && event.shiftKey) {
            alert('foo');
        }
    });
});

jsfiddle

Answer 2

Key codes relate only to keys. $ is a character, achieved through two keys, Shift and 4. There is no key code explicitly for $ when using onkeydown

Edit: It was pointed out by Edward that onkeypress uses key combinations, and does have keycode's for combinations. Learn something new every day :)

Here's some code, edited from the onkeydown example provided by the MDN, to detect keypress keycodes.

Here's the fiddle updated to be Firefox-friendly, using help from this S.O. post. The JQuery solution works too, if you swing that way.

$ is equal to 36.

JavaScript Event KeyCode Test Page

Here is same S.O thread

Answer 3

You cannot check for two key events at once. You can try e.shiftKey which tells you whether the shift key was being pressed when the event occurred. Try to check:

if(e.keyCode === 53 && e.shiftKey){}

also if you have a text field, than you can attach event on key enter and check for '%'.

https://developer.mozilla.org/en-US/docs/DOM/event.shiftKey

thanks to Marcel Korpel

Answer 4

In KeyDown event of TextBox, use:

if (e.Shift && e.KeyCode == Keys.4) {
  //Your code here
}