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How to Check for Memory Leaks in Unit Tests
Feb 26, 2025

How to Check for Memory Leaks in Unit Tests

Reading Jotai Test Code and Its Dependency Library

Daishi Kato
Daishi Kato
When We Should Use WeakMap and WeakSet
Feb 24, 2025

When We Should Use WeakMap and WeakSet

Jotai Uses Them a Lot, and You Might Wonder Why

Daishi Kato
Daishi Kato
Recursive Proxies to Support Nested Objects
Feb 21, 2025

Recursive Proxies to Support Nested Objects

Two Approaches: Eager Wrapping and Lazy Wrapping

Daishi Kato
Daishi Kato
Why We Use Reflect for Proxy Handlers
Feb 18, 2025

Why We Use Reflect for Proxy Handlers

Valtio Uses It to Cover Rare Use Cases

Daishi Kato
Daishi Kato
Let's Learn the Basics of JavaScript Proxies Used in Valtio
Feb 14, 2025

Let's Learn the Basics of JavaScript Proxies Used in Valtio

Proxies Are Heavily Used in Some of My Libraries

Daishi Kato
Daishi Kato
`use-zustand` Uses Zustand Without `useSyncExternalStore`
Feb 13, 2025

`use-zustand` Uses Zustand Without `useSyncExternalStore`

The Special Behavior of `useReducer` That Cannot Be Done With `useState`

Daishi Kato
Daishi Kato
Learn How Jotai Uses a Symbol for Internal API
Feb 12, 2025

Learn How Jotai Uses a Symbol for Internal API

Exploring How Jotai v2.12.0 Exposes Its Internal API

Daishi Kato
Daishi Kato
The Unique Part of Zustand API Design
Feb 11, 2025

The Unique Part of Zustand API Design

What Is Unique and What Feels Ironic, in My Humble Opinion

Daishi Kato
Daishi Kato
Learning Subscription with useEffect from a Simplified Jotai Implementation
Feb 10, 2025

Learning Subscription with useEffect from a Simplified Jotai Implementation

Though useSyncExternalStore Is Generally Recommended

Daishi Kato
Daishi Kato
Detecting Dual Module Issues in Jotai
Feb 09, 2025

Detecting Dual Module Issues in Jotai

Mixing CJS and ESM Can Cause the Issue

Daishi Kato
Daishi Kato
Welcome to My New Newsletter
Feb 08, 2025

Welcome to My New Newsletter

From My Previous Newsletter HackDiary

Daishi Kato
Daishi Kato
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A newsletter by Daishi Kato exploring coding and open source.

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A newsletter by Daishi Kato exploring coding and open source.

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