DevBench Blog

Practical guides on the tools every developer uses daily — written to be bookmarked, not just skimmed.

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UUID vs ULID vs Nano ID: Which Should You Use?

UUID v4 is everywhere, but ULID and Nano ID solve real problems UUID can't. Here's a practical breakdown of when to use each.

What actually goes inside a JSON Web Token? We break down every part of a JWT, explain the signature algorithm, and show the common pitfalls.

JavaScript has two URL encoding functions and most developers mix them up. Here's exactly when to use each one — and what breaks when you don't.

Trailing commas, single quotes, comments — these valid JavaScript patterns silently break JSON parsers. Learn to spot and fix all of them.

The 20 regex patterns every JavaScript developer actually uses — email, URL, IP address, date, and more — with copy-ready code.