📊 Plotly 2.30: A JavaScript Graphing Library

A high-level, declarative charting library, built on top of D3 and stack.gl, with over 40 chart types, including 3D charts, statistical graphs, and SVG maps.

PLOTLY, INC.

❓ CHALLENGE

function factorial(n) {
  return n <= 1 ? 1 : n * factorial(n - 1);
}
console.log(factorial(5));

✌️ Shiki 1.0: A Powerful Syntax Highlighter

A few months ago, we linked to Shikiji, a fork of Shiki that was created to push the project forward. Happily, the creators of both libraries decided to join forces and Shiki 1.0 was born. It’s a syntax highlighter based on TextMate grammar and themes, the same engine as used by VS Code. The docs are good.

PINE WU, ANTHONY FU

❓ CHALLENGE

const obj = {
  value: 42,
  getValue: function() {
    return () => {
      console.log(this.value);
    };
  }
};

const getValue = obj.getValue();
getValue();

👀 Voici.js: Pretty Table Printing for the Terminal

If you’ve got a collection of large objects to print out, this could be ideal as it can format them into a table, dynamically size the columns as appropriate, sort the output, and let you add styling into the mix (including colors.)

LARS WAECHTER

❓ CHALLENGE

const obj = { a: 1, b: 2, c: 3 };
let result = "";
for (const [key, value] of Object.entries(obj)) {
  result += key + value;
}
console.log(result);

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✌️ JavaScript emoji pack for you

❓ CHALLENGE

const string = "hello world";
const result = string.replace(/l/g, "");
console.log(result);

👀 The Playwright Test Generator

I don't know why I’ve not linked this before, as it’s so useful. Playwright isn’t just a library for controlling browsers from JavaScript, but also includes a tool for generating tests and page navigation code from your own interactions. Hit record, do stuff, and code is written.

MICROSOFT

❓ CHALLENGE

console.log(typeof null);

🍊 WinterJS 1.0: A Fast WinterCG and WASM-Compatible JS Runtime

WinterJS initially pitched itself as a Rust and SpiderMonkey-powered ‘Service Workers server’ but now simply boasts being the fastest WinterCG-compatible JavaScript web server full stop. The ability to run JITed JS workloads entirely under WebAssembly is next on their radar.

WASMER

❓ CHALLENGE

console.log(0.1 + 0.2 === 0.3);

🔵 🟠 🌲 🏤 Comparing JavaScript Frameworks: Templates

A thorough comparison of the template languages used by React, Vue, Angular and Svelte. Interesting analysis and this looks set to turn into a great series.

MAARTEN HUS