[React log] 05-The use of props in React (from parent to child)

Others 2021-03-30 05:32:34 views: null

1: Preparation

Parent component (APP) Child component (Header)

Rewrite APP content in index.js

2: Description of data transfer

3: Back to the child component (Header.js)

Insert picture description here

4: If you debug and see props go back to the transmission of new data in index.js ps: useage is not userage, one less r

5: If you check back to the content of the red box in Header.js and re-run it, you can view the result in the browser

6: The results are as follows

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Origin blog.csdn.net/u013034585/article/details/105822266

[React log] 05-The use of props in React (from parent to child)

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