Is it possible to write onFocus/lostFocus handler for a DIV using JS or jQuery?

Question

I have a div and when the user clicks the div a function should be called. And when the user clicks something else (anything other than this div) another function should be

Answer 1

Focus do not work on DIV : http://api.jquery.com/focus/

ALso good read: jquery : focus to div is not working

If you want to focus a div or anything normally can't be focused, set the tag's tabindex to -1 first.
eg: $("div#header").attr("tabindex",-1).focus();

Answer 2

Not sure if this solution suits your web page, but you could use JQuery on() to attach a click event to the body element and delegate it to child div's. Then in your event handler, test the id attribute and handle as such; something like:

$(body).on("click", "div", function (evt) {
     if ($(this).attr("id") == "innerDiv") {
            handle inner div click here
     } else {
            hanlde out div click here
     {
}

Hope this helps...

Answer 3

Sure.

$("#your-div-id").focusin(function() {
    // code here
});

$("#your-div-id").focusout(function() {
    // code here
});

Answer 4

You need to add tabindex attribute to div :

$("#mydiv").focusin(function() {
  $("#mydiv").css("background", "red");
});
$("#mydiv").focusout(function() {
  $("#mydiv").css("background", "white");
});

#mydiv {
  width: 50px;
  height: 50px;
  border: 1px solid red;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="mydiv" tabindex="100"></div>
<div id="anotherdiv"></div>