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Warning: Each child in a list should have a unique “key“ prop.

2022-06-11 06:21:00 【Geek student】

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Warning: Each child in a list should have a unique “key” prop.

Warning ： Each child on the list should have a unique “ The key ” attribute .

reason : This is because there is no one added during the component traversal key To distinguish each component , because dom need deff Contrast

Loop through the generated components , take key Set to index that will do
Insert picture description here Add to the outermost layer of the loop

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