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Brian Vaughn
2018-02-22 16:54:02 -08:00
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content/blog/2018-02-07-update-on-async-rendering.md
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@@ -111,7 +111,7 @@ For this reason, the recommended way to add listeners/subscriptions is to use th
You may also need to update subscriptions based on changes in `props`. In this case, you should also wait until `componentDidUpdate` before _removing_ a subscription. In the event that a render is cancelled before being committed, this will prevent us from unsubscribing prematurely.
Howeveer, waiting to unsubscribe means that we will need to be careful about how we handle events that are dispatched in between `getDerivedStateFromProps` and `componentDidUpdate` so that we don't put stale values into the `state`. To do this, we should use the callback form of `setState` and compare the event dispatcher to the one currently in `state`.
However, waiting to unsubscribe means that we will need to be careful about how we handle events that are dispatched in between `getDerivedStateFromProps` and `componentDidUpdate` so that we don't put stale values into the `state`. To do this, we should use the callback form of `setState` and compare the event dispatcher to the one currently in `state`.
Here is a example:
`embed:update-on-async-rendering/updating-subscriptions-when-props-change-after.js`