Implement Ruby's method_missing inside a JS Class?

Question

I need some functionality that works like Ruby's method missing. I have searched and only found 2 ways:

noSuchMethod: Only available to Mozilla Firefox, and I think it's deprecated or something.
ES6 proxys: Not yet implemented in Chrome, which is a major browser, and partialy implemented in other major ones as per: https://kangax.github.io/compat-table/es6/.

I was thinking in proxies but is a major drawback if isn't supported by Chrome, and if it's not supported by chrome, probably not for NodeJS either.

Any idea how to implement this feature? maybe a library or plain JS prototyping?

score 1 · Answer 1 · answered Dec 06 '15 at 19:59

1

This is not possible without a language level feature like proxies or noSuchMethod. The prototype chain suffers from the same problem that any other solution does in that there is no generic way of handling calls to missing methods/properties on an object.

answered Dec 06 '15 at 19:59

Nick Tomlin

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Then as long as proxies aren't implemented in chrome there's no hope to use this kind of feature inside JS? – Carlos Esteban Lopez Jaramillo Dec 07 '15 at 00:24

Implement Ruby's method_missing inside a JS Class?

1 Answers1