1. Home
  2. Discover
  3. Technology
  4. ECMAScript News

ECMAScript 2024; June TC39 meeting; Babel 7.25.0; subresource integrity; performance optimizations;

Dear readers!

ECMAScript News is taking its mid-year break and will be back on October 1. We wish you a good time!

Axel & Jowe

ECMAScript

What’s new for JavaScript developers in ECMAScript 2024

thenewstack.io @marypcbuk@hachyderm.io @TheNewStack@hachyderm.io

“Our analysis of the small but helpful features in the latest annual JavaScript release, including easier WebAssembly integration.”

Several people are interviewed who worked on these features.

Summary of the June 2024 TC39 plenary in Helsinki

blogs.igalia.com @igalia@floss.social

Babel 7.25.0: Safari bugfixes and duplicated named capturing groups

babeljs.io @babeljs@fosstodon.org

Highlights:
  • Duplicate named capturing groups in RegExp literals
  • Simplify JSON modules imports in CommonJS
  • Fix for parentheses around expressions in class fields in Safari < 16

Coding techniques

Subresource integrity for scripts, CSS, etc. (via cryptographic hashes)

frontendmasters.com @chriscoyier@front-end.social github.com/FrontendMasters

“There is a web platform feature that can help against a third party changing the code they are providing. It’s the integrity attribute on <script> or <link> elements (which are rel="stylesheet", rel="preload", or rel="modulepreload"). It’s called ‘Subresource Integrity’, to name it correctly.”

JavaScript performance optimizations: code splitting, lazy loading, web workers, minifying files, asynchronous loading and more

thenewstack.io @TheNewStack@hachyderm.io

ES Tooling: GitHub organization for performance-related tooling

e18e.dev @e18e@m.webtoo.ls

The blog post mentions three projects that have already joined this organization:
  • Ecosystem cleanup
  • Module replacements
  • Module replacements codemods

Ship fast. Stay secure.

socket.dev Sponsor

Socket’s AI-powered threat detection blocks JavaScript supply chain attacks before they have the chance to compromise your dependencies. In addition to scanning for known vulnerabilities, Socket detects 70+ supply chain and code quality issues. Install our free GitHub app in under two minutes and start protecting your repositories today.

Podcasts

Josh Goldberg – going flat with ESLint [81-min. audio]

changelog.com @JoshuaKGoldberg@fosstodon.org @nicknisi@nicknisi.com @boneskull@fosstodon.org @changelog@changelog.social

  • Josh Goldberg joins Nick and Chris to discuss the latest updates from ESLint, typescript-eslint and the new flat config format.
  • They also discuss creating reusable configs and project generators
  • before pivoting to talk about a new conference focused on developer tooling.
  • Finally, Chris and Josh talk about the past, present and future of Mocha.

Working Code Podcast: code review nuance [63-min. audio]

www.bennadel.com

‍

This email was sent to you. You can unsubscribe from this list here or update your preferences.

‍

Older messages

Subject

Tuesday, July 23, 2024

We have 4 links for you - Stay up-to-date on JavaScript and tools Node.js v22.5.0 (current): node:sqlite and more nodejs.org github.com/aduh95 @nodejs@social.lfx.dev Highlights: SQLite was added to

Leaner npm metadata; Boa JS engine; pnpm 9.5; Vitest 2.0; ESLint v9.7.0; Deno 1.45

Tuesday, July 16, 2024

We have 7 links for you - Stay up-to-date on JavaScript and tools Leaner npm “packument” (package version metadata) github.blog github.com/npm “Starting today, the npm registry will begin removing

Next for ESLint; aborting Promises; Math.random() vs. Crypto.getRandomValues(); library stdlib.io;

Tuesday, July 9, 2024

We have 14 links for you - Stay up-to-date on JavaScript and tools What's coming next for ESLint eslint.org @nzakas@fosstodon.org @eslint@fosstodon.org “The new configuration system is just the

ECMAScript 2024; new Set methods; JS performance initiative; rounding errors; benchmarking tool

Tuesday, July 2, 2024

We have 10 links for you - Stay up-to-date on JavaScript and tools This Week In React - Keeps senior React devs up to date thisweekinreact.com Partner We keep over 40k mid/senior React devs up-to-date

ES2024 book; State of JS results; improving ESM; web build tool “Farm”; optimizing JS; property-base

Tuesday, June 25, 2024

We have 13 links for you - Stay up-to-date on JavaScript and tools Out now: “Exploring JavaScript (ES2024 Edition)” exploringjs.com @rauschma@fosstodon.org “Exploring JavaScript” is the new name of the

You Might Also Like

Daily Coding Problem: Problem #1586 [Hard]

Tuesday, October 22, 2024

Daily Coding Problem Good morning! Here's your coding interview problem for today. This problem was asked by Airbnb. An 8-puzzle is a game played on a 3 x 3 board of tiles, with the ninth tile

Mapped | The Home Price-to-Income Ratio of Large U.S. Cities 🏘️

Tuesday, October 22, 2024

The top five large US cities have a home price-to-income ratio more than double the national average of 4.7. View Online | Subscribe | Download Our App Presented by Hinrich Foundation NEW REPORT:

Ushering In

Tuesday, October 22, 2024

Netflix's Theatrical Strategy • Blade Runner vs. Elon Musk • Disney vs. App Store • Anthropic's AI PC Control • AirPods Hearing Boost Ushering In Netflix's Theatrical Strategy • Blade

Speeding up with SIMD and Go assembly

Tuesday, October 22, 2024

Plus some Go code generation magic, test parallelism, and working with Excel spreadsheets. | #​528 — October 22, 2024 Unsub | Web Version Together with Ardan Labs Go Weekly A Taste of Go Code Generator

LW 155 - Optimizing Shopify Themes for Long Product Descriptions

Tuesday, October 22, 2024

Optimizing Shopify Themes for Long Product Descriptions ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ Shopify Development news and articles

Secure Your Election 2024 eBook at the Best Value Today ⏰

Tuesday, October 22, 2024

Stay informed with our visual guide to the US Presidential Election—exclusively for VC+ members, along with additional updates. View email in browser Now Available: The Visual Guide to the US Election

Startups of The Year: How To Vote

Tuesday, October 22, 2024

Top Tech Content sent at Noon! How the world collects web data Read this email in your browser How are you, @newsletterest1? 🪐 What's happening in tech today, October 22, 2024? The HackerNoon

JS0/JSSugar; converting CommonJS to ESM; top-level await in Node.js; Node.js v23.0.0; Bun v1.1.31;

Tuesday, October 22, 2024

We have 8 links for you - Stay up-to-date on JavaScript and tools Discussing JS0/JSSugar docs.google.com We linked to the JS0/JSSugar slides in last week's issue. We now have reactions to those

Gartner's 2025 tech trends: Adapt - and fast

Tuesday, October 22, 2024

iPhone 16 Camera Control secrets; Lyft Election Day discount; Best TVs -- ZDNET ZDNET Tech Today - US October 22, 2024 future-tunne-gettyimages-108356213 Gartner's 2025 tech trends show how your

⚙️ Microsoft, Google & AI Agents

Tuesday, October 22, 2024

Plus: Europeans would let an AI vote for them ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌