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📰 Dev.to · 99Tools

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JSON to String in JavaScript: The Complete Guide (And the Gotchas That Bite Even Experienced Devs)

Dev.to · 99Tools 🔧 Backend Engineering ⚡ AI Lesson 3w ago

JSON to String in JavaScript: The Complete Guide (And the Gotchas That Bite Even Experienced Devs)

A few years back, I spent about twenty minutes debugging why a user's shopping cart kept resetting on...

Why Your Regex Works in Testing But Breaks in Production

Dev.to · 99Tools 🌐 Frontend Engineering ⚡ AI Lesson 1mo ago

Why Your Regex Works in Testing But Breaks in Production

You write a regex. You test it against two or three sample strings. It matches perfectly. You ship...

Markdown isn't just for documentation—it's the backbone of clean, portable, and AI-friendly content. Learn the essential Markdown best practices every developer should follow, plus the tools that help enforce consistency and save time.

Dev.to · 99Tools 🔧 Backend Engineering 2mo ago

Markdown isn't just for documentation—it's the backbone of clean, portable, and AI-friendly content. Learn the essential Markdown best practices every developer should follow, plus the tools that help enforce consistency and save time.

Markdown Best Practices Every Developer Should Know (And Tools to Enforce Them) ...

Markdown Best Practices Every Developer Should Know (And Tools to Enforce Them)

Dev.to · 99Tools 🔧 Backend Engineering ⚡ AI Lesson 2mo ago

Markdown Best Practices Every Developer Should Know (And Tools to Enforce Them)

Writing Markdown is easy. Writing good Markdown takes a bit more care. Here are the practices that actually matter — plus tools that enforce them automatically.

Stop Writing Ugly SQL: A Developer's Guide to Clean, Readable Queries

Dev.to · 99Tools 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 3mo ago

Stop Writing Ugly SQL: A Developer's Guide to Clean, Readable Queries

We've all been there. You open a PR, and the SQL query looks like someone sneezed on the...

Most devs send the whole object and call it a PATCH. RFC 6902 exists for a reason. Here's what JSON Patch actually does and when it's worth the switch.

Dev.to · 99Tools 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

Most devs send the whole object and call it a PATCH. RFC 6902 exists for a reason. Here's what JSON Patch actually does and when it's worth the switch.

Stop sending entire objects in your PATCH requests. There's a better way ...

Stop sending entire objects in your PATCH requests. There's a better way

Dev.to · 99Tools 🌐 Frontend Engineering ⚡ AI Lesson 3mo ago

Stop sending entire objects in your PATCH requests. There's a better way

I'll be honest — I spent years writing PATCH endpoints that just took the whole object and merged it...

Structured Data Is the SEO Cheat Code Most Developers Ignore

Dev.to · 99Tools 📣 Digital Marketing & Growth ⚡ AI Lesson 3mo ago

Structured Data Is the SEO Cheat Code Most Developers Ignore

If you've ever wondered why some Google results show star ratings, prices, FAQs, or rich snippets —...