🔥 Visualizing Algorithms

This fantastic post is now ten years old, but I revisited it recently and it’s such a joy. Mike Bostock (of D3.js fame) visually guides us through some algorithms using both demos and code.

MIKE BOSTOCK

❓ CHALLENGE

const obj = {};
obj.length = 5;
console.log(obj.length);

Netflix's hello world page 😂

❓ CHALLENGE

const obj = {};
Object.defineProperty(obj, 'length', { get: () => Math.random() });
console.log(obj.length);

❓ CHALLENGE

const obj = { length: 3 };
console.log(Object.keys(obj).length);

🤟 A Node.js Streams Masterclass

What a treat! Join the creator of Fastify, as well as Node.js TSC member, on an hour long odyssey into the world of streams, a topic in which he specializes. He starts off quite poetically .. a stream is like an array over time .. before quickly getting on to some live coding and demos. This is one in a series of events put on by Platformatic. (75 minutes.)

MATTEO COLLINA

❓ CHALLENGE

const arr = [];
arr[100] = 'a';
console.log(arr.length);

👀 pnpm 9.0: The Efficiency-Focused Package Manager

pnpm has long been a fantastic option for folks looking to save disk space and CPU cycles (or for its great monorepo support) while maintaining most of what makes npm great. v9.0 drops Node 16 and 17 compatibility, honors the packageManager field in package.json, makes some default config changes, and adopts Lockfile v9.

PNPM

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❓ CHALLENGE

const arr = ['a', 'b', 'c'];
arr[-1] = 'd';
console.log(arr.length);

📊 Unovis: A Modular Data Visualization Framework

Works with React, Angular, Svelte, Vue or plain old JS/TS. Handles all sorts of things from Sankey diagrams to maps, graphs, chord diagrams, and traditional line/area charts. The v1.4 release adds support for annotating visualizations in a flexible way. There’s a gallery of examples (with code) if you want to dig in.

F5, INC.

❓ CHALLENGE

const obj = { a: 1 };
const { b } = obj;
console.log(b);