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What exactly is a prototype? Why use prototype?-Novice ask ...

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Post time: 2020-4-25 08:00:01
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Write in it will increase the memory overhead every time an object is instantiated
The way to use the prototype chain is the opposite ...
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Post time: 2020-6-13 16:45:01
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prototype is used to inherit the prototype object, mainly to save memory space. -----The authoritative guide to JavaScript has mentioned
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