moreartyjs

Anyone with experience with either/both Morearty.js and Omniscient.js care to explain the differences between the two? From what I could gather with a quick look, they seem almost identical in terms of features and scope. https://github.com/moreartyjs/moreartyjs https://github.com/omniscientjs/omniscient

This is the approach that many ClojureScript frameworks take, and I find it to be a much more elegant approach than Flux proper. You use a single, immutable data structure to store your application state, and components use functional lenses to look into the part of the state they're dependent on and listen for changes. In doing so, you get a free application history stack and deltas (for undo/redo, offline/online sync and some powerful debugging capabilities), extremely efficient shouldComponentUpdate implementations for all components, and opportunities for many more advanced optimizations like batching updates for rendering on requestAnimationFrame. Check out Om if you'd like to take a look at the original ClojureScript implementation, or Morearty.js if you're interested in a pure JS alternative. https://github.com/moreartyjs/moreartyj

The centralized immutable state oriented architecture advocated by Om can definitely be implemented using plain JavaScript (my favorite in this space is https://github.com/moreartyjs/moreartyjs), but language features like core.async, transducers and macros are not so easily replicated.

I've run across a couple HAMT implementations you might not have seen: https://github.com/mattbierner/hamt/ https://github.com/Tvaroh/moreartyjs The first implementation (hamt) is interesting because it's in a same semantics compile-to-js language (by the author) called Khepri and it benchmarks pretty well on datastructure microbenchmarks. http://khepri-lang.com/ https://github.com/mattbierner/js-hashtrie-benchmark The second is a less interesting pure JS implementation that I show as faster than mori and slower than hamt on the hashtrie-benchmark. I've been meaning to test them on a wider variety of benchmarks (more aggregate operations and vs transients) but I only ran across them last week and I've been busy.

There's also https://github.com/Tvaroh/moreartyjs