Immer, Immutability and the Wonderful World of Proxies
summary
Immer is presented as a library that uses JavaScript Proxies to create and maintain a mutable-looking shadow tree (a draft) so code can use normal JS mutation APIs while producing an immutable next state. The talk shows browser demos and source, claims reducers can be about half as big by removing manual copy/update code, and notes caveats: it requires Proxy support and has runtime observable/behavioral traps in environments without Proxies.
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chapters (7)
- 0:00Welcome
- 1:33JavaScript Proxies
- 8:10Immer and immutable state
- 12:46Immer with Proxies
- 17:51Proxy use cases
- 23:00Advanced Proxy techniques
- 27:49Q&A
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