JavaScript tips

 I have been developing my game for fifteen years. I only spend a few hours a day on it, at most.  I mostly add animations which are fun and where you can soon see the results. In the early days I had a clear objective: to learn the language and have something to show for it. Now, I do it because I find it calming. The editor of 'osnews.com' said that most people working on one-person operating-system projects lose interest after a few years.

I have added 'next', 'previous', 'author' and 'license' document relations to the 'head' of my web pages. For example, I say:     <link rel="next" href="https://bbingo.xyz/credits/"> My very old browser shows these 'document relations' in the browser's main menu.. I do not see any modern browsers showing these 'document relations'.  Google search does not seem to use these 'document relations' either

 One day, my browser showed pages with little color and thick outlines. I thought maybe my computer had finally stopped working, or that I had deleted a shared library the browser uses. In fact, I had accidently turned on an accessibility stylesheet option!

 I define my own global function 'alert' that writes the message using 'console.log'.  I still use 'alerts' for debugging. I can leave the alerts in when going live and just override the 'alert' function. I also still debug by adding colored backgrounds to HTML elements. The debugger on my old Konqueror browser hangs the browser. The browser is 15 years old and I compiled it myself (slightly wrongly) from the sources.