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Can't catch change at CSS/JS element

New Contributor

Can't catch change at CSS/JS element

Hello, I need to catch button changes after user click on it. I have setup automatisation that click on this button, but I can't catch that it changes. To html tag button by JS adding "style='display: none'", and background became black. TeamLead say that I should realize Test without html check, can someone explain how I can do this with TestComplete?


Please help.

Community Manager

Re: Can't catch change at CSS/JS element

Thank you for posting your question, let's see if the Community can help here.


@anupamchampati @Wamboo @tristaanogre @Reshail any ideas?🙂

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Community Leader

Re: Can't catch change at CSS/JS element



1) display: none;

I do not cause the html element to physically disappear from the DOM of the indicated url. This element will not be visible on the screen but in which page structure (under F12) in the console.


If you're using NameMapping, refresh the structure of the mapped elements before you can trace the element again.


That is:

2) NameMapping


var myElement =

after this operation, let's say the button disappears and the property you mapped (theoretically) also changes

Then use .refreshMappingInfo() on the myElement and you will have the element with the current properties after the action.


3) ObjectBrowser

You can also search for items directly in the "Object Browser" panel of the selected browser. See this option.

New Contributor

Re: Can't catch change at CSS/JS element

The situation has changed slightly over time. The moderator removed the site, but unfortunately, without a specific example, you will not understand what the matter is, on this page there is this button.copy-btn-bonus.copied, when you click it, an element <span> appears, and after a while it disappears. It works with JS and in fact nothing changes in HTML, changes occur in the DOM structure, I tried use .refreshMappingInfo() but he doesn't see the element and with ObjectBrowser I can't catch it either. Any ideas? Perhaps TestComplete will not be able to cope with this task?

Community Leader

Re: Can't catch change at CSS/JS element

The function responsible for adding .copied class on the page can be found in the console:

its content is this:


var clpMainPmcode = new ClipboardJS('.copy-btn-bonus');
var tooltip = '<span id="tooltiptext">u0421\u043A\u043E\u043F\u0438\u0440\u043E\u0432\u0430\u043D\u043E!</span>';
clpMainPmcode.on('success', function(s) {

    setTimeout(function() {
    }, 4000);


1) read the documentation and write your JS -> function using e.g. jquery (to retrieve the newly displayed item) and do whatever you think with it.


Doc link:


2) Press the button and type in the console:

var module = $(".copied"); // by classname

you will receive an object in an inspiration that contains the item. Check screen.


Community Hero

Re: Can't catch change at CSS/JS element



In addition to what was suggested by @Wamboo, here is an article from Support that might inspire you with ideas:


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