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there's a big problem with React's useContext

180,616 Aufrufe • vor 1 Jahr •via X (Twitter)

11 Kommentare

Profilbild von Cryptic Genome ☣️
Cryptic Genome ☣️vor 1 Jahr

Wait I dont understand why would you suggest putting the context provider in the highest possible node in the tree? Just after saying that components re-render their children unnecessary after context value change?

Profilbild von Aiden Bai
Aiden Baivor 1 Jahr

if you pass it at a low part of a subtree that renders a lot, and the value changes a bunch, and many parts of the app depend on that data, it can cause issues

Profilbild von Callstack Engineers
Callstack Engineersvor 1 Jahr

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Profilbild von vorillaz
vorillazvor 1 Jahr

`use-context-selector` is an amazing abstraction layer that solves this problem

Profilbild von Tiger Abrodi
Tiger Abrodivor 1 Jahr

Yeah. This is what I dislike most with React's useContext. Better alternatives: - MobX - Zustand - Jotai

Profilbild von Josh Manders
Josh Mandersvor 1 Jahr

Did you manually speed up the video? My setting says 1x but it sounds like 1.5-2x

Profilbild von ℂ𝕠𝕕𝕖𝕩, ℍ𝕖𝕣𝕖!
ℂ𝕠𝕕𝕖𝕩, ℍ𝕖𝕣𝕖!vor 1 Jahr

I was hoping to see a mention of useMemo and React.memo

Profilbild von Jordy
Jordyvor 1 Jahr

React should just provide better global state handling out of the box. Its such a common use case.

Profilbild von Bedros Pamboukian
Bedros Pamboukianvor 1 Jahr

Hm, useContext is great for avoiding prop drilling in components, but this video seems centered around application-level state - for that, use something like Redux / Zustand Application state gets messy with Context, and having 12 different contexts on the top-level is not ideal

Profilbild von {Bhide}.Svelte
{Bhide}.Sveltevor 1 Jahr

React === Problems

Profilbild von Rat the Dog
Rat the Dogvor 1 Jahr

love these videos. learning a lot about react through these short bites. just a note, i had to slow down the speed to .75 to really grasp what you're saying.

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