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Over 150 Algorithms and Data Structures Demonstrated in JS - Examples of many common algorithms (e.g. bit manipulation, Pascal's triangle, Hamming distance) and data structures (e.g. linked lists, tries, graphs) with explanations. Available in eighteen other written languages too.
Oleksii Trekhleb et al.
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TypeScript: From First Steps to Professional - Learn TypeScript step-by-step with Anjana Vakil, and gain confidence writing code you can trust! Add strong types, reuse interfaces, and apply type safety throughout your app with hands-on projects converting JavaScript to TypeScript.
Frontend Masters sponsor
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The Performance Inequality Gap in 2026 - Esteemed browser and Web standards expert Alex Russell looks at the state of client-side Web performance, what sort of bandwidth you should be taking into account, what devices people are using, and warns against ever-growing JavaScript bundle sizes. A lot of data here.
Alex Russell
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Why Use React? (On the Frontend) - Jeremy asks some big, potentially uncomfortable questions, but notes how React's modern server-side powers are a real boon, while questioning React's role on the frontend, where Preact might well suit you better.
Jeremy Keith
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FullCalendar: A Full Sized JavaScript Calendar Control - Get a Google Calendar-style experience in your own apps. Has connectors for React, Vue and Angular, but can be used with plain JavaScript too. The base version is MIT licensed, but there's a commercial version too with extra features.
Adam Shaw
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ποΈ Depot's new GitHub Actions Analytics: see job durations, failure rates, CPU/memory usage, and performance trends across all your repos at a glance.
π¨ Try Pintura image editor for free today, add a polished cropping, rotating, and annotation experience to your web app in minutes.
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π’ Elsewhere in the ecosystem
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Some other interesting tidbits in the broader landscape:
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If you've not yet played with CSS's "subgrid" feature (now supported in all major browsers), Josh W Comeau has a fantastic introduction to the new possibilities subgrids offer your layouts.
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β οΈ GitHub reports secrets/tokens leaked in Git repos to the service providers so they can be revoked, but now it's reporting secrets in unlisted GitHub Gist posts too (so be careful when using it as a 'private' pastebin).
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The RetroGameCoders IDE is a JavaScript and WebAssembly-powered online IDE/playground for coding against retro machines, now including the C64, Apple II, MSX, Atari 800, and others.
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π€ Addy Osmani has written a neat roundup of what's new in Gemini 3.0, the latest version of Google's leading LLMs. He touches on Nano Banana Pro image generation, Google's new Antigravity dev tool, and how the updates benefit developers. Not keen to be left behind, however, Anthropic released Claude Opus 4.5 earlier this week.
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The team behind the Zig language isn't happy with GitHub and so is migrating from GitHub to Codeberg.
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