Trigger JavaScript action with keypress

Question

2020 update:

I have a modal that closes with the code modal.style.display = "none"; . How can I, using JavaScript, trigger the above code when the user presses "ESC" on their keyboard?

Original question:

As the title says. Here is the modal code I'm using: https://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_modal2

Answer 1

Add this to your javascript code :

window.onkeydown = function(evt) {
    evt = evt || window.event;
    if (evt.keyCode == 27) {
        modal.style.display = "none";
    }
};