Assumptions: let’s assuming you are using Rails, with Webpacker, and you want to display to completely different Elm apps on the same page, and you ALSO want to initialise them based on a particular condition. How would you go about doing that?

The following are a mixture of my thoughts/comments + a summary of what is contained in Basecamp’s “Getting Real” book.

Things are complicated enough as they are. Here is a curated list of “simple explanations” (of programming concepts) I’ve prepared. I hope you find it useful:

If you’re writing some javascript and then suddenly discover that you need to add some nodes / HTML to your webpage, need not be taken from the server, what are you meant to do? Basically, you need to render some HTML from your javascript code. Where will this HTML come from?

The following are basic notes re: CSS, written primarily for my own benefit.

These are some common pointers which may confuse me.

This took me a little while to work out.

So you’ve made a change to the database. Will things still work with your existing code? Perhaps not. How then are you going to handle it?

The list is extensive - especially if one wants to get to a substantial degree of mastery in any particular element: