What is the impact of indexes as keys?

题目类型: 行为面试题

这是一道行为面试题，常见于澳洲IT公司面试中。

难度: medium

参考答案摘要

Keys should be stable, predictable, and unique so that React can keep track of elements. In the below code snippet each element’s key will be based on ordering, rather than tied to the data that is be...

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