🔥 Hot Discussions in r/Javascript

Showoff Saturday (January 31, 2026)

• 👍 Upvotes: 2
• 💬 Comments: 5
• 👤 Posted by: u/AutoModerator
• 📅 Posted on: 1/31/2026
• 🏷 Flair: Showoff Saturday

Your /r/javascript recap for the week of January 19 - January 25, 2026

• 👍 Upvotes: 2
• 💬 Comments: 2
• 👤 Posted by: u/subredditsummarybot
• 📅 Posted on: 1/26/2026
• 🏷 Flair: Subreddit Stats

made a localstorage compression lib thats 14x faster than lz-string

• 👍 Upvotes: 34
• 💬 Comments: 53
• 👤 Posted by: u/Early-Split8348
• 📅 Posted on: 2/1/2026
• 🏷 Flair: No Flair

Been working on a JavaScript browser IDE

• 👍 Upvotes: 1
• 💬 Comments: 2
• 👤 Posted by: u/Brief-Baker-5111
• 📅 Posted on: 2/2/2026
• 🏷 Flair: No Flair

Created my first package, looking for feedback

• 👍 Upvotes: 1
• 💬 Comments: 0
• 👤 Posted by: u/lorenzo-vecchio
• 📅 Posted on: 2/1/2026
• 🏷 Flair: No Flair

[AskJS] :: can't maintain contsistency, and forgeting everything, give me solution

• 👍 Upvotes: 0
• 💬 Comments: 4
• 👤 Posted by: u/Space-Immortal
• 📅 Posted on: 2/1/2026
• 🏷 Flair: AskJS

Tiny WebGL library with shader first approach

• 👍 Upvotes: 14
• 💬 Comments: 5
• 👤 Posted by: u/Antique_Historian_71
• 📅 Posted on: 1/31/2026
• 🏷 Flair: No Flair

I built a browser fingerprinting library with 19 collectors and bot detection - just released v2.0

• 👍 Upvotes: 0
• 💬 Comments: 5
• 👤 Posted by: u/Pllooz
• 📅 Posted on: 2/1/2026
• 🏷 Flair: No Flair

JavaScript objects - memory ref and shallow copy

• 👍 Upvotes: 0
• 💬 Comments: 5
• 👤 Posted by: u/kavindujayarathne
• 📅 Posted on: 2/1/2026
• 🏷 Flair: No Flair

[AskJS] In production JavaScript apps, how do you decide when abstraction becomes overengineering?

• 👍 Upvotes: 5
• 💬 Comments: 22
• 👤 Posted by: u/Cute-Needleworker115
• 📅 Posted on: 1/31/2026
• 🏷 Flair: AskJS

Lix v0.5 - Version control library for JS

• 👍 Upvotes: 35
• 💬 Comments: 2
• 👤 Posted by: u/samuelstroschein
• 📅 Posted on: 1/30/2026
• 🏷 Flair: No Flair

I implemented an ARMv4 CPU emulator in pure JavaScript — no WASM, runs at 60fps in browser

• 👍 Upvotes: 68
• 💬 Comments: 5
• 👤 Posted by: u/Positive_Board_8086
• 📅 Posted on: 1/30/2026
• 🏷 Flair: No Flair

[AskJS] Option to create virtual input devices with node?

• 👍 Upvotes: 0
• 💬 Comments: 2
• 👤 Posted by: u/Willing-Analyst-3429
• 📅 Posted on: 1/31/2026
• 🏷 Flair: AskJS

I built an AST-based contract tracker to catch structural drift and prop hallucinations during large-scale refactors

• 👍 Upvotes: 0
• 💬 Comments: 2
• 👤 Posted by: u/context_g
• 📅 Posted on: 1/31/2026
• 🏷 Flair: No Flair

[AskJS] How do you preserve runtime object context when debugging JavaScript across breakpoints?

• 👍 Upvotes: 0
• 💬 Comments: 1
• 👤 Posted by: u/filippo_cavallarin
• 📅 Posted on: 1/31/2026
• 🏷 Flair: AskJS

Rust-inspired multithreading tasks in JavaScript

• 👍 Upvotes: 25
• 💬 Comments: 2
• 👤 Posted by: u/Waltex
• 📅 Posted on: 1/29/2026
• 🏷 Flair: No Flair

I built a cached, self-healing alternative to Google Places API using OSM

• 👍 Upvotes: 0
• 💬 Comments: 3
• 👤 Posted by: u/blackbunny8866
• 📅 Posted on: 1/30/2026
• 🏷 Flair: No Flair

Handling Responses and In-Flight Requests with Durable Objects

• 👍 Upvotes: 1
• 💬 Comments: 0
• 👤 Posted by: u/OtherwisePush6424
• 📅 Posted on: 1/29/2026
• 🏷 Flair: No Flair

I built a way to safely execute untrusted Javascript using WebAssembly sandboxes

• 👍 Upvotes: 38
• 💬 Comments: 5
• 👤 Posted by: u/Tall_Insect7119
• 📅 Posted on: 1/28/2026
• 🏷 Flair: No Flair

[AskJS] Help with scanning QR codes

• 👍 Upvotes: 6
• 💬 Comments: 14
• 👤 Posted by: u/Ok-Home-5813
• 📅 Posted on: 1/29/2026
• 🏷 Flair: AskJS

I built a zero-config CLI for monorepo versioning (alternative to Changesets/Nx)

• 👍 Upvotes: 16
• 💬 Comments: 1
• 👤 Posted by: u/antonreshetov
• 📅 Posted on: 1/28/2026
• 🏷 Flair: No Flair

A real-time signal-decoding playground in the browser (for BCI research)

• 👍 Upvotes: 8
• 💬 Comments: 0
• 👤 Posted by: u/yelabbassi
• 📅 Posted on: 1/28/2026
• 🏷 Flair: No Flair

I built a native WebGPU JS runtime (no browser needed)

• 👍 Upvotes: 57
• 💬 Comments: 11
• 👤 Posted by: u/balthierwings
• 📅 Posted on: 1/27/2026
• 🏷 Flair: No Flair

I built a chrome extension to debug and format javascript code in Browser.

• 👍 Upvotes: 0
• 💬 Comments: 5
• 👤 Posted by: u/calxibe
• 📅 Posted on: 1/28/2026
• 🏷 Flair: No Flair

I built a minesweeper game that got on HN front page, pls try it out

• 👍 Upvotes: 2
• 💬 Comments: 3
• 👤 Posted by: u/Aggravating-Copy-822
• 📅 Posted on: 1/28/2026
• 🏷 Flair: No Flair