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並前往https://crypt.codemancers.com/posts/2021-04-14-using-index-of-an-array-as-key-can-lead-to-bad-consequences/

Using Index of an array as KEY Can Lead to Bad Consequences

In the above snippet, we can have array index as key, if we are adding element only to the end of the array. { list.map((item, index) ...

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