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Performance tips

  • Use local variables whenever possible - they are much faster than globals. This means you should always use var to declare variables.
  • Avoid the following language features (they tend to disable optimizations):
    • eval
    • arguments
    • with
  • Use strict mode - it is slightly faster.

Last edited Dec 29, 2010 at 3:55 AM by paulbartrum, version 2


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