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A comment on Scheduling in React. Parent comment

Re:Scheduling in React by gambler on Thursday March 07, 2019 @06:18PM (#19333653)
>in Concurrent Mode we can interrupt a render in the middle if user does an interaction

Can you interrupt an arbitrary user-written function that's called inside the rendering stack?

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Re:Scheduling in React by philipp-spiess on Thursday March 07, 2019 @06:24PM (#19333689)
No, that's not possible in JavaScript. The important part is that React components are lazily evaluated[1] and are not rendered as a stack. So React can render a few components and then pause for higher priority work.

As a user of the framework, you don't need to care about this though. So your mental model can be that of an interruptable function.

[1]: https://overreacted.io/react-as-a-ui-runtime/#lazy-evaluatio...

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Re:Scheduling in React by ivanwonder on Friday March 08, 2019 @01:24AM (#19335549)
I think to interrupt a render means interrupt the process of reconciliation. you don't have to response the user input until the difference of whole React element has been found. https://overreacted.io/react-as-a-ui-runtime/#consistency
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