jQuery .on点击img的事件处理程序

Question

I am trying to call a function on clicking an image using jQuery.

My html code is as follows:

<div id="fixed-navbar">
            <div class="nav-left">
                <img id="back" src="back.png">
            </div>
... (some other code)
</div>

to call a function on clicking of the above image i am writing script as:

$("#back").on('click', '.nav-left', function(e) {
                e.preventDefault();
                window.history.back();
});

why isn't this working?

PS: These div's are added dynamically

Answer 1

You're binding the event on .nav-left instead of #back itself.

$("#back").on('click', function(e) {
    e.preventDefault();
    window.history.back();
});

If your image is dynamically generated inside the div.nav-left element, you just need to reverse the selectors.

$(".nav-left").on('click', '#back', function(e) {
    e.preventDefault();
    window.history.back();
});

If all your content is dynamic, you need to do it this way.

$("body").on('click', '#back', function(e) {
    e.preventDefault();
    window.history.back();
});

Instead of body , you can specify the closest enclosing parent element that is not dynamically added to the page.