Bug Vanquisher

19 December 2007

I Hate foreach

Filed under: Bugz, Dev inside! — Tanveer Badar @ 3:42 PM

There are many reasons. People don’t implement it properly. foreach uses duck typing which does not require one to implement IEnumerable/IEnumerator. But people always go ahead and implement them with "virtual" functions and properties. Consider the performance hit when you are recursively iterating over all the files in a drive.

foreach also requires that collection be not modified during enumeration, yet people still do these kinds of things

foreach( Transaction transaction in transactions )

transactions.Remove( transaction );


in [it].

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