what is the key code for shift+tab?

Question

I am working on key mapping. The problem is that when I press the TAB button down it navigates to the next input field.

TAB has key of 9 and
DOWN has key of 40

But, what is the JavaScript key code to go to the previous input field (SHIFT + TAB)?

What I want is to go to next link; what is keycode or code for the previous link?

Please help. Thanks.

Answer 1

There's no "keycode", it's a separate property on the event object, like this:

if(event.shiftKey && event.keyCode == 9) { 
  //shift was down when tab was pressed
}

Answer 2

e.keyCode has been deprecated for sometime. Use "e.key" KeyboardEvent.key instead.

Usage:

e.shiftKey && e.key === 'Tab'

Example:

function clicked(e) {
    if (e.shiftKey && e.key === 'Tab') {
        // Do whatever, like e.target.previousElementSibling.focus();
    }
}