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vault backup: 2025-05-17 12:21:31

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Affected files:
.obsidian/workspace.json
.obsidian_iphone/plugins/obsidian-spaced-repetition/data.json
.obsidian_iphone/workspace-mobile.json
2 Personal/1 Skills/IT/React Learnings.md
This commit is contained in:
Obsidian-MBPM4
2025-05-17 12:21:31 +02:00
parent e3ec013c3a
commit dc25086486
4 changed files with 64 additions and 42 deletions
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60
.obsidian/workspace.json vendored
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@@ -23,34 +23,6 @@
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@@ -78,9 +50,23 @@
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2
.obsidian_iphone/plugins/obsidian-spaced-repetition/data.json
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@@ -47,7 +47,7 @@
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28
.obsidian_iphone/workspace-mobile.json
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@@ -69,12 +69,12 @@
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16
2 Personal/1 Skills/IT/React Learnings.md Normal file
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@@ -0,0 +1,16 @@
---
title: React Learnings
created_date: 2025-05-17
updated_date: 2025-05-17
aliases:
tags:
---
# React Learnings
## State Machine - Reducers
Reducers are what they are named after: they reduce the current state variable and an action/event into a new state and therefore are perfect for handling state machines of complex components within a react app.
The official documentation is really good: [useReducer – React](https://react.dev/reference/react/useReducer) and this blog article helped me as well: [Medium](https://medium.com/better-programming/simplify-your-react-components-state-with-a-state-machine-8e9c9a4ee1f6)
Reducers are pure, so within the reducer function you never do any API calls or anything that needs to do calculations.
If you need to do any API calls or heavy calculations they must be done outside of the reducer function as explained here: [Just a moment...](https://stackoverflow.com/questions/64419132/how-to-make-api-call-in-usereducer).