In React, is it fine to use indexes for *keys*? #react
What are some ways to get around the undefined "this" binding in React event handlers? #react
What's the difference between event attribute names in HTML and React? #react
Which are the different forms of `setState()` and how are they used? #react
How would be the code to implement a Clock component in React? #react
Why React's data flow, like component state flow, is called "top-down" or "unidirectional"? #react
What does it mean that the merge that `setState()` does is shallow? #react
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