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Discussion on: Accessing React State right after setting it

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dance2die profile image
Sung M. Kim

You're welcome there Andie.

But be aware of componentDidUpdate causing an infinite recursion as Truong pointed out.

You can read it in the reactjs documentation, it says:

You may call setState() immediately in componentDidUpdate() but note that it must be wrapped in a condition like in the example above, or you’ll cause an infinite loop.

The example is

componentDidUpdate(prevProps) {
  // Typical usage (don't forget to compare props):
  if (this.props.userID !== prevProps.userID) {
    this.fetchData(this.props.userID);
  }
}
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In my case, i update and re-render component whenever i receive new data from websocket.