I have implemented a similar feature with a pop-out menu that closes when the user clicks outside of it. This same concept can be applied in this scenario as well.
In my implementation, I utilized an overlay div that covers the entire screen with a slightly translucent opacity, creating a modal effect. You can assign an id to this overlay - for example, modal-overlay.
You can include this overlay statically in your page code, set its display property to none, and make it full-size using a CSS class.
<div id="modal-overlay" class="full-screen-overlay"></div>
Ensure the overlay has a higher z-index than the rest of your page, and your popup has a higher z-index than the overlay. When displaying the popup, also set the visibility of the modal-overlay to visible.
In your script code, add an event handler for when the modal div is clicked:
$('#modal-overlay').click(function() {
$('#clickedImg').hide();
$('#modal-overlay').hide();
})
It's recommended to use the jQuery method .hide() for simplicity instead of manually setting visibility.
If you have multiple actions involved (like in a modal overlay), consider encapsulating the "show/hide" functionality in a method like hidePopup() or closePopup() and call it onClick to avoid code duplication.
For additional visual effects when opening the popup/overlay, you can utilize jQuery animations such as .fadeIn() or .slideDown(). Use fadeOut() and slideUp() to hide them.
These animations handle both showing and hiding, so there's no need to explicitly call .hide() or .show().
Check out this link to explore more on jQuery's animation capabilities. It's very useful and informative.
I hope this information proves helpful!