Is there a way to trigger a Tab key click event while typing in a text field?

Can you show me how to capture the Tab key event in jQuery? I want to display an alert if a user clicks the Tab key while entering text in an input field.

I have tried using the following code but it's not working...


var myInput = document.getElementById("caseName");
if(myInput.addEventListener ) {
    myInput.addEventListener('keydown',this.keyHandler,false);
} else if(myInput.attachEvent ) {
    myInput.attachEvent('onkeydown',this.keyHandler); /* IE hack */
}

function keyHandler(e) {
    alert("Hi")
    var TABKEY = 9;
    if(e.keyCode == TABKEY) {
        this.value += "    ";
        alert("Tab")
        if(e.preventDefault) {
            e.preventDefault();
        }
        return false;
    }
}

Answer №1

To simplify the code, all you need to do is remove the 'this' keyword from these lines:

myInput.addEventListener('keydown', this.keyHandler, false);

Instead, change it to this:

myInput.addEventListener('keydown', keyHandler, false);

Feel free to take a look at this fiddle.

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