Are JavaScript arrays associative?

Posted by Lem0n on Stack Overflow See other posts from Stack Overflow or by Lem0n
Published on 2010-04-04T20:48:22Z Indexed on 2010/04/04 20:53 UTC
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For instance, if I do a[1000000]=1; will it use memory for 1000000 elements or just for this one?

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