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Imagine having a like animation and a counter. When the like is pressed the counter should increment.
A person using the interface doesn’t know about how data flux is designed, what is a network request. The person just expects the heart to be colored immediately.
As React Native is single-threaded, the best approach is to run animation on UI Thread(color the icon + update the counter) and only when the animation is finished run on JS Thread the rest of the work as updating state and sending a network request. In this way the counter is not waiting for request, the whole interaction is on UI.
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MORE IDEAS ON THIS
Instead of running multiple threads, React Native runs multiple processes. 3 main processes run in React Native. (Even if they are called threads)
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Thread. You can think of a thread as a set of instructions to be executed by the CPU. A thread is a component of a process.
Process. A process is a program that is running. For example, the bro...
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Single-threaded means that a process is designed to have only one thread of execution. This means only one set of instructions executes at once.
Multi-threaded means that a process has two or more threads. So it can execute multiple instructions simultaneou...
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Because React Native is single-threaded, if you have a process that has many responsibilities, you can have performance problems. Imagine you have a process responsible for rendering a video on the screen and a live feed of comments on the video. The video rendering could block the live feed from...
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Every process has one or more threads. And a program can actually be made up of many processes. In the example above, you’ll notice that it says Google Chrome (44). This means that Google Chrome is actually running 44 different processes. Processes in a single pr...
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If animation run on JS Thread then for each frame the JS Thread will send serialized data on Bridge to the UI Thread. This will result in something similar with real life traffic jam where we have the bridge and the cars(code for each frame).
In addition of this imagine also doing a networ...
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CURATED FROM
IDEAS CURATED BY
TL;DR how threading is working in React Native and the solution of handling data flux for a like button and its counter
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