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How to Troubleshoot Javascript Using Browser’s Inspector

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May 04.2021

Is there is a good way to use the inspector in a browser to pinpoint quickly where a javascript is applying a style, I can see a style changing from how it is set through css style sheets.

[This 24s video shows what I am seeing (link).](https://legacy-systems.biz/longview2500/public_links/public/programming/find_the_javascript/find_the_javascript.php)

[This is the link to the page shown in the video](https://legacy-systems.biz/longview2500/topics/virtual_data_rooms/books2smiles.inc/js_style_demo.html).

I have tinkered in the browser inspector to try finding a way to troubleshoot the javascripts, but have never figured out how to find the javascript that way. Up until now, I find the javascript by searching website files for the class or id of the element being styled.

![](https://legacy-systems.biz/longview2500/external_support/moxnix/inspector.png)

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Full-stack DeveloperJavaScript

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@ellafellMay 05.2021 — 
  • - Open your page in Chrome.

  • - Turn on developer tools with F12 (Mac: Cmd+Opt+I).

  • - Select the Sources panel.


    • The toggler button opens the tab with files.

    Let’s click it and select hello.js in the tree view.

    **The Sources panel has 3 parts:**
  • 1. The File Navigator pane lists HTML, JavaScript, CSS, and other files, including images that are attached to the page. Chrome extensions may appear here too.

  • 2. The Code Editor pane shows the source code.

  • 3. The JavaScript Debugging pane is for debugging,
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    @ivyhicksonMay 13.2021 — In any case thank you for helping me.
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