This story was originally published on HackerNoon at: https://hackernoon.com/gos-new-experimental-packages-what-to-know.
This blog post is about Go 1.25’s new experimental encoding/json/v2 and encoding/json/jsontext packages, which bring long-awaited improvements and fixes.
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This story was written by: @Go. Learn more about this writer by checking @Go's about page, and for more stories, please visit hackernoon.com.

Go 1.25 introduces new experimental packages for encoding and unmarshaling of Go types. The new packages are not visible by default and may undergo future API changes. This blog post argues for a new major API version and explains how you can make use of it.

This story was originally published on HackerNoon at: https://hackernoon.com/how-i-mastered-javascript-event-loop-and-concurrent-model.
Discover practical tips for building responsive web applications without freezing the UI.
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This story was written by: @danielochinasa. Learn more about this writer by checking @danielochinasa's about page, and for more stories, please visit hackernoon.com.

JavaScript is single-threaded but handles multiple tasks concurrently using the event loop, call stack, callback queue, and microtask queue. Getting to know this, lets you write non-blocking code, manage async operations, and build responsive web apps.

This story was originally published on HackerNoon at: https://hackernoon.com/i-got-15k-people-to-practice-sql-by-turning-them-into-detectives.
See how SQL Case Files became a top choice for anyone searching for free SQL games or challenging SQL puzzles.
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This story was written by: @hackstarky. Learn more about this writer by checking @hackstarky's about page, and for more stories, please visit hackernoon.com.

SQL practice is boring because you're querying meaningless data in a vacuum. I built SQL Case Files - a detective game where you solve crimes by writing real SQL queries. Your phone vibrates when you close a case. No badges, no streaks, just investigations that feel physical. 15K monthly users in 4 weeks. This is how I made it work technically: SQLite WASM for local execution, result-set validation instead of SQL text matching, mobile-first UX with sticky schemas and bottom-sheet drawers, and a rate-limited AI assistant (20 calls/day because I'm paying for it). The constraint accidentally made people better at SQL. Free to play, no signup, runs entirely in your browser.