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MJ
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JavaScript: querySelectorAll returns element unexpectedly

querySelectorAll is returning an element that doesn't appear to be on the page? I have a web app that has a drop-down widget with a "change password"  option. When this option is selected, an overlay appears with an element of  <h3 class="modal-title">Change Password</h3>. I was doing some testing and if I land on a view with this widget and never select the "change password" option. I have no issues. The If I select the "change password" option, it (<h3 class="modal-title">Change Password</h3>) is detected fine. The issue is when I close the "Change password" overlay, the code still detects that is it there. Even if I go to a new view? If I inspect the code there isn't any element <h3 class="modal-title">Change Password</h3> but it is still being returned by querySelectorAll ? I did read "The Document method querySelectorAll() returns a static (not live) NodeList representing a list of the document's elements that match the specified group of selectors." I'm assuming that is the issue but not sure how to ensure querySelectorAll  reads the live nodelist? Can I manually remove the element from the node list collection?  Unfortunately, I can't share the URL due to it being behind a firewall. 


Thanks!

JavaScript

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MJ

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
Michel Plungjan

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Julian Hansen

If querySelectorAll finds it - it is on the page - it may not be visible but it is there.If you are looking at the source with View Page and you don't find it - it is probably because it is being added dynamically

What you can do is in FireFox (not sure if Chrome has this option) go to your Inspector (console - F12) and do a search for the class / id / element that you think should not be there.

Michel Plungjan

@Julian Yes, Chrome has it too
MJ

ASKER
Yeah, it is there after I open and close the overlay and inspect it! I  thought I did that before.My apologies!
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