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React useLatest Hook: Read Fresh State in Async Callbacks (2026)

ReactUse3d ago • 9 min read

React useLatest Hook: Read Fresh State in Async Callbacks (2026)

Here's an autosave button that lies to the user: function Editor({ docId }: { docId: string }) { ...

#react#javascript#webdev#tutorial

8 1

React useScrollLock Hook: Lock Body Scroll for Modals (2026)

ReactUse15h ago • 9 min read

React useScrollLock Hook: Lock Body Scroll for Modals (2026)

Your modal is open, centered, perfect. Then someone flicks the overlay and the page behind it scroll...

#react#javascript#webdev#tutorial

7 1

"I built a lying MCP server on purpose — here's how you catch it"

wolfejam.dev2d ago • 5 min read

"I built a lying MCP server on purpose — here's how you catch it"

TL;DR — A server's README can say anything. Its tools/list response either backs that up or it...

#ai#mcp#rust#tutorial

4 6

Build semantic search inside video: shot embeddings + transcript chunks, fused on the timeline

Mason K6d ago • 6 min read

Build semantic search inside video: shot embeddings + transcript chunks, fused on the timeline

TL;DR Frame-only video search can't find "where she explains pricing." Transcript-only...

#video#python#programming#tutorial

2 0

I Ripped Out a Carousel Library. CSS Replaced It.

Parsa Jiravand1d ago • 4 min read

I Ripped Out a Carousel Library. CSS Replaced It.

The bug ticket said "carousel feels broken on trackpad." It took me forty minutes to find the actual...

#css#webdev#frontend#tutorial

17 0

React useElementSize Hook: Track Element Width & Height with ResizeObserver (2026)

ReactUse6d ago • 7 min read

React useElementSize Hook: Track Element Width & Height with ResizeObserver (2026)

Media queries answer one question: how big is the viewport? But your components don't live in the...

#react#javascript#webdev#tutorial

11 0

10 Days to Build a Voice AI Tutor: The Good, The Bad, and The "Why Is It Silent?!"

Satwik M N4d ago • 7 min read

10 Days to Build a Voice AI Tutor: The Good, The Bad, and The "Why Is It Silent?!"

I Built a Voice-First AI Tutor for Bharat in 10 Days 🇮🇳 — Here’s My Complete Journey Over the pas...

#agents#ai#devchallenge#tutorial

3 0

.NET 10 dotnet tool exec: Pin the Version and Feed in CI

Sukhpinder Singh1d ago • 4 min read

.NET 10 dotnet tool exec: Pin the Version and Feed in CI

A CI step that says dotnet tool exec Some.Tool looks isolated, but it is not fully reproducible....

#dotnet#devops#programming#tutorial

5 0

React scrollIntoView with useRef: Scroll to an Element (2026)

ReactUse1d ago • 9 min read

React scrollIntoView with useRef: Scroll to an Element (2026)

You have a long form. The user hits Submit, validation fails on a field three screens down, and the....

#react#javascript#webdev#tutorial

8 1

React useSessionStorage Hook: Per-Tab State That Survives Reloads (2026)

ReactUse2d ago • 10 min read

React useSessionStorage Hook: Per-Tab State That Survives Reloads (2026)

Here's a checkout flow that loses the customer at step three: function Checkout() { const [step...

#react#javascript#webdev#tutorial

8 0

My JetBrains Rider Setup for Surviving Live-Coding Demos

Lou Creemers4d ago • 6 min read

My JetBrains Rider Setup for Surviving Live-Coding Demos

Hey lovely readers, If you've read any of my Public Speaking at Tech Events 101 blog posts, you...

#programming#csharp#tutorial#tools

2 0

React useFocus Hook: Track & Control Element Focus State (2026)

ReactUse5d ago • 7 min read

React useFocus Hook: Track & Control Element Focus State (2026)

Focus is where interaction actually happens — the input receiving keystrokes, the button the keyboar...

#react#javascript#webdev#tutorial

9 0

Stop Parsing AI Text: Build Reliable Features with Structured Outputs

𝗝𝗼𝗵𝗻6d ago • 10 min read

Stop Parsing AI Text: Build Reliable Features with Structured Outputs

A practical, vendor-neutral guide to using schemas, validation, and explicit failure paths for depen...

#ai#programming#webdev#tutorial

5 4

Build a directional preload window for a scrolling video feed with hls.js

Mason K6d ago • 6 min read

Build a directional preload window for a scrolling video feed with hls.js

TL;DR Vertical video feeds are fast on the first item and stutter on every one after....

#video#javascript#webdev#tutorial

1 0

Python's match-case is not a switch statement (it's better)

websilvercraft1d ago • 3 min read

Python's match-case is not a switch statement (it's better)

When match-case landed in Python 3.10, half the internet said "finally, Python has switch." That...

#python#programming#tutorial#cleancode

1 1

Building a Kubernetes Security Audit Tool with Go

Ayi NEDJIMI1d ago • 5 min read

Building a Kubernetes Security Audit Tool with Go

Most Kubernetes clusters ship with insecure defaults that nobody touches until something goes wrong....

#go#security#devops#tutorial

1 0

Anonymous pastebins are a spam magnet. I gated mine with proof-of-work instead of logins.

Zeke4d ago • 4 min read

Anonymous pastebins are a spam magnet. I gated mine with proof-of-work instead of logins.

Anonymous paste services get scripted into spam dumps, phishing kits, and credential lists. Instead ...

#webdev#bitcoin#security#tutorial

1 0

How I Built My First MCP Server for Claude Code: 5 Lessons Learned

yureki_lab1d ago • 7 min read

How I Built My First MCP Server for Claude Code: 5 Lessons Learned

TL;DR I spent a weekend building my first MCP server so Claude Code could query our...

#ai#claudecode#typescript#tutorial

2 1

I redacted my username from a screen recording three times and missed it every time

Renga5d ago • 4 min read

I redacted my username from a screen recording three times and missed it every time

Originally published on my own site. I make a desktop AI agent. I recorded a demo of it writing...

#ffmpeg#python#video#tutorial

0 0

Cybersecurity from Zero to Hero #1: The CIA Triad, or Why Your Bank App Keeps Logging You Out

sachin k2d ago • 4 min read

Cybersecurity from Zero to Hero #1: The CIA Triad, or Why Your Bank App Keeps Logging You Out

Welcome to post one of my new series, Cybersecurity from Zero to Hero. I am learning security from.....

#cybersecurity#security#beginners#tutorial

0 0

I Built a RAG Pipeline in TypeScript Without LangChain — The Whole Thing in 200 Lines

Apurwa-Anand4d ago • 18 min read

I Built a RAG Pipeline in TypeScript Without LangChain — The Whole Thing in 200 Lines

A retrieval pipeline built by hand in six files — the data structures behind each stage, the four bu...

#typescript#ai#node#tutorial

0 0

Building an Incremental Financial Data Pipeline on a Free Tier (¥0 Infrastructure)

Hidenari Fujiwara5d ago • 5 min read

Building an Incremental Financial Data Pipeline on a Free Tier (¥0 Infrastructure)

My stock research pipeline ingests prices and financials for every listed company in Japan, runs...

#python#datascience#architecture#tutorial

0 0

The cheapest LLM call is the one you don't make: a caching layer that actually pays off

YaFei22h ago • 3 min read

The cheapest LLM call is the one you don't make: a caching layer that actually pays off

The cheapest LLM call is the one you don't make: a caching layer that actually pays off In the last...

#llm#ai#costoptimization#tutorial

0 0

Comprei um water cooler sem suporte para Linux. Então fiz engenharia reversa do software.

Kleber Silva2d ago • 7 min read

Comprei um water cooler sem suporte para Linux. Então fiz engenharia reversa do software.

Quando comprei um Water Cooler Pichau Aqua 120X, a ideia era simples: resfriar e usar o display LCD....

#programming#linux#assembly#tutorial

1 0

Tech Articles

React useLatest Hook: Read Fresh State in Async Callbacks (2026)

React useScrollLock Hook: Lock Body Scroll for Modals (2026)

"I built a lying MCP server on purpose — here's how you catch it"

Build semantic search inside video: shot embeddings + transcript chunks, fused on the timeline

I Ripped Out a Carousel Library. CSS Replaced It.

React useElementSize Hook: Track Element Width & Height with ResizeObserver (2026)

10 Days to Build a Voice AI Tutor: The Good, The Bad, and The "Why Is It Silent?!"

.NET 10 dotnet tool exec: Pin the Version and Feed in CI

React scrollIntoView with useRef: Scroll to an Element (2026)

React useSessionStorage Hook: Per-Tab State That Survives Reloads (2026)

My JetBrains Rider Setup for Surviving Live-Coding Demos

React useFocus Hook: Track & Control Element Focus State (2026)

Stop Parsing AI Text: Build Reliable Features with Structured Outputs

Build a directional preload window for a scrolling video feed with hls.js

Python's match-case is not a switch statement (it's better)

Building a Kubernetes Security Audit Tool with Go

Anonymous pastebins are a spam magnet. I gated mine with proof-of-work instead of logins.

How I Built My First MCP Server for Claude Code: 5 Lessons Learned

I redacted my username from a screen recording three times and missed it every time

Cybersecurity from Zero to Hero #1: The CIA Triad, or Why Your Bank App Keeps Logging You Out

I Built a RAG Pipeline in TypeScript Without LangChain — The Whole Thing in 200 Lines

Building an Incremental Financial Data Pipeline on a Free Tier (¥0 Infrastructure)

The cheapest LLM call is the one you don't make: a caching layer that actually pays off

Comprei um water cooler sem suporte para Linux. Então fiz engenharia reversa do software.