Tips for locating the Javascript method being executed using Chrome Dev Tools within an Angular program:

Currently, I am investigating a potential issue in an Angular application involving the JavaScript responsible for scrolling a page when a user clicks on a link. The process seems straightforward – click the link, and the page scrolls. However, I am struggling to identify which functions are invoked upon clicking the link, especially in a complex app consisting of numerous separate files.

I have come across suggestions to use breakpoints by setting them up through the SOURCES tab in Chrome DevTools. Unfortunately, despite opening several JS files in the devtools, I have not been able to locate any breakpoint options to analyze.

Is there a method within Chrome's DevTools that allows me to determine which JavaScript code is triggered by a specific event on the webpage?

javascriptangularjsdebugginggoogle-chrome-devtools

Answer №1

  1. Begin by navigating to the Sources tab.
  2. Expand the Event Listener Breakpoints section.
  3. Expand the Control option, then select the checkbox next to scroll.
  4. Proceed to scroll down the page.

The Javascript runtime will pause at the event listener linked to page scrolling, and its location will be displayed in the main window within the Sources tab. If it's a library file (such as Angular files), right-click on the file and choose Blackbox script. Try scrolling the page again for more information.

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