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Of Love and Hate: TypeScript, Redux and Immutable.js
- finchisko 9y agoI'm wondering why to bother with immutable.js, when redux already requires that state changes has to be immutable.
- phryneas 9y agoimmutability of redux state is convention, but not enforced within redux. This example is react state, but the same problems arise with redux: https://twitter.com/brayoh_k/status/978539881243774976 https://twitter.com/brayoh_k/status/978539881243774976
- finchisko 9y agoMaybe it's not enforced by redux itself, but you cannot use react-redux component then. React-redux will only rerender component , if state or part of it is new instance and not just mutated shallow copy, effectively requiring the state to be immutable.
- phryneas 9y agoThe point of using immutable in this case is to prevent mutating the state by accident as a side-effect of another action. I know that react-redux will only rerender if things changed through a dispatch (in fact, everything consuming redux.subsrcibe will not notice a side-effect change), but those things happen if you do not use some kind of immutability and especially if they have no immediate effect, it's a nightmare to debug. Read the article, this is discussed in the first few paragraphs.