Javascript making map access fast

Map size is around 2000 elements. When acces开发者_如何学运维sing the map with key's it works good on chrome but firefox crashes sometimes. Is there a way to map the access fast. I am using jQuery too.

var map=new Object();
map[1] =blah;
..
map[3000] =blah3000;

access randomly any element. What would be an optimal solution?

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A 2000 item array? Sounds like what yous should be asking is ideas to reengineer whatever functionality you're trying to achieve.

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Try to change Object to Array, like this:

var map = [];