Record · corpus.blog/posts/01a0c56e-e680-727d-bd13-8874bb199676

What To Know in JavaScript (2026 Edition)

Frontend Masters Blog · published 3 April 2026

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Host

https://frontendmasters.com/blog/what-you-need-to-know-about-modern-css-2025-edition/

frontendmasters.com

https://tc39.es/ecma262/2025/

tc39.es

https://codepen.io/editor/chriscoyier/pen/019c9733-c5ed-7594-9bd9-8ed47f3860d1?file=%2Findex.html&orientation=left&show=preview

codepen.io

https://codepen.io/editor/chriscoyier/pen/019cbeea-b5e2-7af0-acbe-96dab95e0ee8

codepen.io

https://codepen.io/editor/chriscoyier/pen/019cc8dc-9bde-7597-9b57-d91d6ef0a6c2

codepen.io

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import/with

developer.mozilla.org

Importing vs fetching JSON Read at the source ↗

jakearchibald.com

https://frontendmasters.com/blog/architecture-through-component-colocation/

frontendmasters.com

https://www.infoworld.com/article/4021944/ecmascript-2025-the-best-new-features-in-javascript.html

infoworld.com

Moment.js Read at the source ↗

momentjs.com

https://caniuse.com/temporal

caniuse.com

https://blogs.igalia.com/compilers/2026/01/31/implementing-the-temporal-proposal-in-javascriptcore/

blogs.igalia.com

https://github.com/tc39/agendas/blob/main/2026/03.md

github.com

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sumPrecise

developer.mozilla.org

https://codepen.io/editor/chriscoyier/pen/019d5093-782b-7ab5-a507-f689e9e00173

codepen.io

React v19 Read at the source ↗

react.dev

https://react.dev/reference/rsc/server-components

react.dev

https://react.dev/learn/react-compiler

react.dev

https://18.react.dev/reference/rsc/server-actions

18.react.dev

React Native 0.83 - React 19.2, New DevTools features, no breaking changes Read at the source ↗

reactnative.dev

Critical Security Vulnerability in React Server Components Read at the source ↗

react.dev

https://github.com/vuejs/core/releases/tag/v3.6.0-alpha.1

github.com

https://frontendmasters.com/blog/the-vue-ecosystem-in-2024/

frontendmasters.com

https://voidzero.dev/

voidzero.dev

https://viteplus.dev/

viteplus.dev

Announcing Nuxt 4.0 Read at the source ↗

nuxt.com

NuxtLabs joins Vercel Read at the source ↗

vercel.com

https://pinia.vuejs.org/cookbook/migration-v2-v3.html

pinia.vuejs.org

Svelte 5 is alive Read at the source ↗

svelte.dev

https://svelte.dev/docs/kit/introduction

svelte.dev

https://frontendmasters.com/blog/when-deno-or-bun-is-a-better-solution-than-node-js/

frontendmasters.com

https://nodejs.org/en/learn/typescript/run-natively

nodejs.org

https://nodejs.org/api/permissions.html

nodejs.org

Bun 1.3 Read at the source ↗

bun.com

Anthropic acquires Bun as Claude Code reaches $1B milestone Read at the source ↗

anthropic.com

https://js-segfault-compare.sigmasd.workers.dev/

js-segfault-compare.sigmasd.workers.dev

Announcing Deno 2 Read at the source ↗

deno.com

https://docs.deno.com/runtime/fundamentals/security/

docs.deno.com

https://vite.dev/

vite.dev

Vite 8.0 is out! Read at the source ↗

vite.dev

https://rollupjs.org/

rollupjs.org

https://rolldown.rs/

rolldown.rs

https://void.cloud/

void.cloud

Astro Read at the source ↗

astro.build

https://start.solidjs.com/

start.solidjs.com

https://nuxt.com/

nuxt.com

https://github.com/cloudflare/vinext

github.com

https://nextjs.org/docs/app/api-reference/turbopack

nextjs.org

https://nextjs.org/docs/app/guides/upgrading/version-16

nextjs.org

https://webpack.js.org/

webpack.js.org

Roadmap 2026 Read at the source ↗

webpack.js.org

Announcing TypeScript 6.0 Read at the source ↗

devblogs.microsoft.com

https://bytes.dev/archives/473

bytes.dev

https://github.blog/news-insights/octoverse/octoverse-a-new-developer-joins-github-every-second-as-ai-leads-typescript-to-1/

github.blog

A Proposal For Type Syntax in JavaScript Read at the source ↗

devblogs.microsoft.com

https://vitest.dev/

vitest.dev

https://playwright.dev/

playwright.dev

https://pptr.dev/

pptr.dev

https://www.cypress.io/

cypress.io

Next.js 16 Read at the source ↗

nextjs.org

Bundle Size Investigation: A Step-by-Step Guide to Shrinking Your JavaScript Read at the source ↗

developerway.com

https://javascript.plainenglish.io/are-react-server-components-improving-your-apps-b4afdd6d5196

javascript.plainenglish.io

https://medium.com/@dan0dev/react-server-components-the-good-the-bad-the-ugly-e08e63b8e676

medium.com

https://dev.to/rbobr/the-hidden-performance-costs-of-react-server-components-248f

dev.to

https://nextjs.org/docs/app/guides/mcp

nextjs.org

https://frontendmasters.com/blog/reacts-viewtransition-element/

frontendmasters.com

https://remix.run/

remix.run

https://reactrouter.com/

reactrouter.com

Wake up, Remix! Read at the source ↗

remix.run

https://remix.run/jam/2025

remix.run

https://tanstack.com/

tanstack.com

https://tanstack.com/router/latest

tanstack.com

https://tanstack.com/start/latest

tanstack.com

https://frontendmasters.com/blog/tag/tanstack/

frontendmasters.com

https://blog.cloudflare.com/astro-joins-cloudflare/

blog.cloudflare.com

https://blog.cloudflare.com/emdash-wordpress/

blog.cloudflare.com

Astro 6.0 Read at the source ↗

astro.build

Astro 6.1 Read at the source ↗

astro.build

https://www.npmjs.com/

npmjs.com

https://damrnelson.github.io/github-historical-uptime/

damrnelson.github.io

https://nx.dev/blog/s1ngularity-postmortem

nx.dev

https://www.wiz.io/blog/widespread-npm-supply-chain-attack-breaking-down-impact-scope-across-debug-chalk

wiz.io

https://socket.dev/

socket.dev

https://frontendmasters.com/courses/?utm_source=boost&utm_medium=blog&utm_campaign=boost

frontendmasters.com