识别键盘快捷键（Ctrl + W）在Chrome中按

Question

I am trying to write a certain script that will trigger when the window close shortcut ( Ctrl + W/Ctrl + F4 ) is pressed.
This works fine for IE as well as Firefox but doesn't work at all for Chrome.
I am using the below code for doing the same.
Please suggest me if there is a better and more proper way of doing it.

var prevKey = ""
$(document).keydown(function (e) {//Enter and F5 button press
    if (e.keyCode == "116" || e.keyCode == "13") {
        window.onbeforeunload = null;
    }//Ctrl + w
    else if (e.ctrlKey == true && e.keyCode == "87") {//FOR CTRL + W
        alert("Ctrl + W");
        window.onbeforeunload = ConfirmLeave;
    }//(Ctrl or Alt) + F4
    else if ((e.ctrlKey == true || e.altKey == true) && e.keyCode == "115") {
        window.onbeforeunload = ConfirmLeave;
    }

Answer 1

Try to check for click event on Window object and check if the keyCode is equal to keyCode of W , then check if the CTRL key is clicked. This part of snippet has worked on FF and Chrome for me.

$(window).keydown(function(e) {
    // check for W button
    if (e.which == 87) {
        // check if CTRL is clicked!
        if (e.ctrlKey) {
            alert('gg');
        }
    }
});