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Question by BonyYousuf · Dec 11, 2016 at 06:29 PM · programmingforeachdictionarydevelopmentgarbage-collection

How to traverse a dictionary without foreach that creates boxing?

How to traverse a dictionary without foreach that creates boxing?

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Answer by hexagonius · Dec 11, 2016 at 07:40 PM

I think that kind of question is better placed on stackoverflow

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Answer by Flassari · Jan 25, 2017 at 01:58 PM

You have to get the Enumerator yourself, it doesn't create any garbage since the Enumerator is a struct. Foreach boxes it and creates garbage.

 // Doing a foreach boxes the enumerator, calling it explicitly doesn't.
 var enumerator = myDictionary.GetEnumerator();
 while (enumerator.MoveNext())
 {
     Debug.Log(enumerator.Current.Key);
 }
 enumerator.Dispose(); 
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