I've created library `transmutable` for performing automatic copy-on-write behavior in JS (you just write imperative code which is transformed behind scenes int

I've created library `transmutable` for performing automatic copy-on-write behavior in JS (you just write imperative code which is transformed behind scenes into immutable updates https://npmjs.com/package/transmutable https://npmjs.com/package/transmutable This can avoid boilerplate traditionally associated with immutable updates in JavaScript, because you just write const copy = transform(original, stage => { stage.someArray[index] = 42; }); and it returns immutable copy of original object with appropriate mutations.