javascript - Why does react need the key attribute to identify elements, but vue does not?-PHP Chinese Network Q&A

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javascript - Why does react need the key attribute to identify elements, but vue does not?

三叔 2017-06-26 10:55:21

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Why does react need the key attribute to identify elements, but vue does not? Which method does vue use to identify elements?

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三叔

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阿神2017-06-26 10:57:21 3 floor

Who said vue has no key.

Whether it is vue or react, the key plays the same role. React does not need it, it just reports a warning.

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大家讲道理2017-06-26 10:57:21 2 floor

Vue also needs it, the official website reads: In order to give Vue a hint so that it can track the identity of each node and thus reuse and reorder existing elements, you need to provide a unique key attribute for each item. The ideal key value is that each item has a unique id. Link the key in vue

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