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[·­Òë]High Performance JavaScript(025)

µÚ°ËÕ  Programming Practices  ±à³Ìʵ¼ù
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    When web pages or applications begin to feel slow, analyzing assets as they come over the wire and profiling scripts while they are running allows you to focus your optimization efforts where they are needed most.
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javascript prototype½éÉܵÄÎÄÕÂ

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