Firefox DevTools has a feature similar to Snippets called Scratchpad. How do I load an ImageView by URL on Android? How to call a JavaScript function on click?
you can run them on any page. There is typo in title. I just installed a rotating image function in my block and your code activated it! Click the name of the Snippet that you want to run. The Sources panel with the Page pane open on the left.
,
