Switch statements: do you need the last break? (Javascript mainly)

Posted by Jon Raasch on Stack Overflow See other posts from Stack Overflow or by Jon Raasch
Published on 2010-04-28T13:28:39Z Indexed on 2010/04/28 13:33 UTC
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switch

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JavaScript

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switch-statement

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Performance

When using a switch() statement, you add break; in between separate case: declarations. But what about the last one?

Normally I just leave it off, but I'm wondering if this has some performance implication I'm not thinking about?

I've been wondering about this for a while and don't see it asked elsewhere on Stack-O, but sorry if I missed it.

I'm mainly asking this question regarding Javascript, although I'm guessing the answer will apply to all switch() statements.

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