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Note about memoizing collections and functions

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Thanks @puzrin!
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Mariusz Nowak
2012-11-01 11:17:06 +01:00
parent 3ad3503277
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@@ -124,6 +124,10 @@ memoized("12", true); // Cache hit
memoized({ toString: function () { return "12"; } }, {}); // Cache hit
```
__Note. If your arguments are collections (arrays or hashes) that you want to memoize by content (not by self objects), you need to cast them to strings__, for that just use [primitive mode](#primitive-mode). Arrays have standard string representation and work with primitive mode out of a box, for hashes you need to define `toString` method, that will produce unique string descriptions.
Similarly __if you want to memoize functions by their code representation not by their objects, you should use primitive mode__.
### Memoizing asynchronous functions
With _async_ option we indicate that we memoize asynchronous function.