An implementation of the mars rover kata in TypeScript using EffectTS.
cli-1.mov
cli-2.mov
Install NPM dependencies:
$ npm install
Run the sample program (it doesn't do much):
$ npm run start
Run the interactive CLI (pass -h or --help to see options):
$ npm run cli -- -h
Run tests:
$ npm test
Run tests in watch mode:
$ npm test:watch
- I enjoy this programming paradigm (I read one description that suggested that Effect is to TS what NextJS or Remix is to React, which is interesting - it is described as a superset of TS)
- It's a steep learning curve, and I wouldn't reach for Effect on a production client application unless I knew that the team supporting it was bought in already
- The benefits of the approach are less apparent at smaller scales, but I can imagine how it begins to pay off as an application grows and changes over time
- The TS magic is pretty amazing. Having type-checked dependency injection is quite interesting
- Everything is more complicated, due to the indirection introduced by Effect
- It's different (and a bit unfamiliar) to think about structuring an application using effects rather than the usual data/immediate functions/control flow
Effect.gen(..)is super useful and nice to write except for all theyield* _(..)noise, which is a bummer- One of the drawbacks that I dislike is that it feels like a lot of code must be "framework/library" code rather than app/domain code - I don't find the result to be very readable