[skybrian]

That's a good point about running it in the debugger.

However, even with a large program, sometimes I find it helpful to write a smaller program that does much the same thing as a small part of it. For example, last year I wrote a debugger frontend in Dart, based on the Chrome DevTools debugger. Whenever I wanted to implement something I'd first look at how the Chrome debugger did it.

Currently I'm working on a reimplementation of the React framework, also in Dart.