Show HN: I built 70 exercises for you to become better at JavaScript

3 bilalcg 0 8/18/2025, 3:07:34 PM codeguage.com ↗

I've noticed online that exercises for JavaScript tend to revolve around algorithms and data structures more than they focus on deeper concepts of the language itself (such as closures, classes, HTML DOM, CSSOM, events, etc.)

And that's why I tried coming up with a collection on my own, that helps you exercise your knowledge of many concepts in JavaScript, most importantly of HTML DOM and events.

While performing these exercises, you also get to know about some important ideas in computer science (e.g. binary search), mathematics (e.g. Heron's Formula), and programming in general.

GPT-5 (openai.com)

Fight Chat Control (fightchatcontrol.eu)

GitHub is no longer independent at Microsoft after CEO resignation (theverge.com)

I tried every todo app and ended up with a .txt file (al3rez.com)

Claude Sonnet 4 now supports 1M tokens of context (anthropic.com)

Ultrathin business card runs a fluid simulation (github.com)

I want everything local – Building my offline AI workspace (instavm.io)

Wikipedia loses challenge against Online Safety Act (bbc.com)

Streaming services are driving viewers back to piracy (theguardian.com)

FFmpeg 8.0 adds Whisper support (code.ffmpeg.org)

Emailing a one-time code is worse than passwords (blog.danielh.cc)

Debian 13 “Trixie” (debian.org)

Steve Wozniak: Life to me was never about accomplishment, but about happiness (yro.slashdot.org)

Good system design (seangoedecke.com)

Vibechart (vibechart.net)

Why LLMs can't really build software (zed.dev)

Claude Code is all you need (dwyer.co.za)

VC-backed company just killed my EU trademark for a small OSS project

Gemma 3 270M: Compact model for hyper-efficient AI (developers.googleblog.com)

Nginx introduces native support for ACME protocol (blog.nginx.org)

Show HN: The current sky at your approximate location, as a CSS gradient (sky.dlazaro.ca)

Claude says “You're absolutely right!” about everything (github.com)

PYX: The next step in Python packaging (astral.sh)

Open hardware desktop 3D printing is dead? (josefprusa.com)

How I code with AI on a budget/free (wuu73.org)

Show HN: Building a web search engine from scratch with 3B neural embeddings (blog.wilsonl.in)

Try and (ygdp.yale.edu)

This website is for humans (localghost.dev)

GPT-5: Key characteristics, pricing and system card (simonwillison.net)

I accidentally became PureGym’s unofficial Apple Wallet developer (drobinin.com)

Wikimedia Foundation Challenges UK Online Safety Act Regulations (wikimediafoundation.org)

OpenFreeMap survived 100k requests per second (blog.hyperknot.com)

Jim Lovell, Apollo 13 commander, has died (nasa.gov)

Search all text in New York City (alltext.nyc)

Ask HN: How can ChatGPT serve 700M users when I can't run one GPT-4 locally?

What's the strongest AI model you can train on a laptop in five minutes? (seangoedecke.com)

Historical Tech Tree (historicaltechtree.com)

The future of large files in Git is Git (tylercipriani.com)

Why are there so many rationalist cults? (asteriskmag.com)

Meta Leaks Part 1: Israel and Meta (archive.org)

Web apps in a single, portable, self-updating, vanilla HTML file (hyperclay.com)

Cursed Knowledge (immich.app)

The Chrome VRP Panel has decided to award $250k for this report (issues.chromium.org)

Monero appears to be in the midst of a successful 51% attack (twitter.com)

Do things that don't scale, and then don't scale (derwiki.medium.com)

PuTTY has a new website (putty.software)

The Framework Desktop is a beast (world.hey.com)

Occult books digitized and put online by Amsterdam’s Ritman Library (openculture.com)

AI is different (antirez.com)

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Show HN: I built 70 exercises for you to become better at JavaScript

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