Use JQuery to constantly monitor for any changes in HTML Div

I am dealing with a browser-based chat application where separate div elements are generated for each chat conversation. An external module oversees the entire chat process, and I do not have access to its underlying code.

It is important to note that there are no identifiers used within the code; only CSS class names are assigned to the dynamically created chat divs.

Every time a new chat session begins, a new div (with the CSS class: chat_incoming) is added as a child under the parent div (with the CSS class: tabcontent).

My question is how can I use jQuery to monitor the parent div (with the CSS class: tabcontent) for any changes such as the addition of a new child div (specifically one with the CSS class: chat_incoming)?

My challenge is that I do not have a click event or the immediate presence of the chat div upon window loading. Chat conversations can be initiated at any time after a user logs in, therefore causing the parent div to remain empty until then.

I attempted some research on my own but did not make much progress.

Although I grasp the concept that using '.on' in jQuery may be necessary to observe events for both pre-existing and dynamically generated divs, the lack of a click event poses a difficulty when implementing .on().

As a potential solution, I tried:

$('tabcontent').bind('DOMNodeInserted DOMNodeRemoved', function(event) {alert('hi')});

However, this approach does not seem to yield the desired results either (refer to the provided fiddle here).

Any assistance or guidance on this matter would be greatly appreciated.

Thank you.

Answer №1

Make sure your jQuery is targeting the tabcontent tag and not the .tabcontent class. The script should be looking for a tag named tabcontent, not a class with the same name.

Update that in your code and it should hopefully start working properly, assuming everything else is correct in the script.

$('.tabcontent').bind('DOMNodeInserted DOMNodeRemoved', function(event) {alert('hi')});

Answer №2

Why not give this a shot...

$(".tabcontent").on("DOMSubtreeModified", function() {
    alert("The tree has been altered!");
});

Let me know if this works for you!

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