Decisions in interface design can sometimes have far-reaching consequences. The class of errors where values get injected, omitted or mixed up is typically more disruptive than a case of a missing value.

To sum it up: where there's a method to fetch a single item, it is probably a good idea to return one item precisely.

In reply to Re^7: A question about method return values and error checking (unnatural) by Anonymous Monk
in thread A question about method return values and error checking by wee

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