alternative of Proxy

hi, I am trying to use lib proxy-memoize in our website to replace reselect, but our website serves customers, so need be compatible with as many browsers as possible, but proxy-polyfill can’t work with this lib, since the polyfill only support a limited scope traps, not include has, deleteProperty and so on.

I also take a look of immerjs to check how it works in non-proxy environment, it use Object.defineProperty instead, so what I think is:

1. add a condition setUseProxies to disable using Proxy.
2. have a backup Object.defineProperty implementation, for this scenario, only support limit recording method.
   • record traps get and set
   • getOwnPropertyDescriptor and ownKeys are rarely used and also reasonable if not record them.
   • has and deleteProperty are big problems, only hope the developers notice to don’t use them.
     • obj['a'] instead of 'a' in obj
     • const { ...newObj, a } = obj instead of delete obj.a

then I think proxy-memoize can have a widely usage scenarios, hope can as a default selectorCreator be putted in the redux-toolkit one day ^_^

[dai-shi]

https://github.com/GoogleChrome/proxy-polyfill/blob/9dc3aa4ac356308e337f85bb9e671438b4da0ece/src/proxy.js#L100-L106

Okay, this is very unfortunate. I think polyfill shouldn’t do this, but understandable.

[hayond]

See https://github.com/dai-shi/proxy-memoize/pull/48

got it, thanks