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Allow convertObjectToArray to handle objects with no prototype #507

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merged 1 commit into from Aug 12, 2017

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southpolesteve
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Currently this method expects hasOwnProperty to exist on the passed object. By using the method on Object.prototype instead, objects created with Object.create(null) can also be properly handled.

Ran into this bug trying to pass graphQL input objects (heavily uses Object.create(null)) directly to hmset commands

@luin
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luin commented Aug 12, 2017

Nice catch! What about using Object.keys to get the keys? See "Object.keys for loop" in https://jsperf.com/object-keys-vs-for-in-with-closure/3

Currently this method expects `hasOwnProperty` to exist on the passed object. By using the method on `Object.prototype` instead, objects created with `Object.create(null)` can also be properly handled.

Ran into this bug trying to pass graphQL input objects (heavily uses `Object.create(null)`) directly to hmset commands

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@southpolesteve
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I was curious how reduce would perform but it looks worse: https://jsperf.com/object-keys-reduce-vs-for-loop/1

Updated to use Object.keys + a for loop. Also added a test for an object without a prototype

@luin luin merged commit 8e17920 into redis:master Aug 12, 2017
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