Hello JavaScript Enthusiasts!


Welcome to a new edition of "This Week in JavaScript"!


This week, we’re hyped about Angular v20’s lightning-fast features, Remix’s game-changing framework overhaul, and the future of JavaScript. We’ve also got an updated list of tools supercharge your development workflow, as always


Angular v20 Is Now 35% Faster

At Google I/O on May 21, 2025, the Angular team announced Angular v20, scheduled for release on May 29. This version significantly enhances server-side rendering (SSR), signals, and authoring capabilities, providing an improved developer experience and optimized application performance.


Zoneless Angular (Developer Preview)

typescript

bootstrapApplication(App, {

zoneless: true

});

Manual change detection invocation:

typescript

import { markForChange } from '@angular/core';

markForChange();

Signal Ecosystem Enhancements

typescript

const count = signal(0);

const double = computed(() => count() * 2);

const history = linkedSignal([], (prev, next) => [...prev, next]);

typescript

const user = resource(async () => await fetchUser());

const posts = httpResource('/api/posts');

Server-Side Rendering (SSR) Improvements

typescript

export const routes: Routes = [

{ path: '', component: HomeComponent, renderMode: 'ssr' },

{ path: 'about', component: AboutComponent, renderMode: 'client' }

];

Authoring Experience Improvements

xml

<ng-container *let="user of userSignal()">

{{ user.name }}

</ng-container>

xml

<div [class]="{ active: isActive }"></div>

New Integrations and Tooling

Additional Highlights


Angular v20 delivers substantial improvements across SSR, reactive programming with signals, authoring, and developer tooling, reinforcing its position as a robust framework for enterprise-grade applications.


Remix v3 And The Breakup With React


Remix v2 powers React Router v7 with robust server-side rendering capabilities, enabling fast, scalable applications used by Shopify, GitHub, and over 11 million projects worldwide. Its architecture is well suited for e-commerce platforms, blogs, and other content-driven sites, providing a reliable full-stack React framework experience.


Following the close integration and eventual merging of Remix into React Router v7, as detailed in the merging announcement, Remix v2 had become a thin wrapper around React Router. This consolidation allowed React Router to inherit many of Remix’s strengths, including server-side rendering and React Server Components (RSC) support, creating a stable, battle-tested platform with long-term support.


Remix v3 marks a significant departure from this model. It replaces React with the lightweight Preact library and embraces a model-first, low-dependency, web API-centric approach. This reimagining minimizes reliance on heavy build tools by favoring runtime execution, making it ideal for AI-driven applications, lightweight websites, and modern web development workflows.


Key features of Remix v3


Overall, Remix v3 represents a bold evolution toward leaner, faster web applications by reimagining the framework’s foundations around modern web standards and minimalism. It is poised to reshape how developers build scalable, high-performance web apps with a fresh, streamlined approach.


The BIGGEST JavaScript Change?

The Temporal API, a modern replacement for JavaScript’s legacy Date object, has been in development for several years and is now enabled by default in Firefox 139, with broader runtime support expected soon. This API addresses long-standing issues with date and time handling, offering a more reliable, precise, and developer-friendly approach.


Key improvements and features


Example

typescript

const date = Temporal.PlainDate.from("2025-05-23");

const oneWeekLater = date.add({ days: 7 }); // 2025-05-30

const dt = Temporal.PlainDateTime.from("2025-12-31T23:30");

const nextHour = dt.add({ hours: 1 }); // 2026-01-01T00:30


The Temporal API’s introduction marks a significant evolution in JavaScript date/time handling, eliminating many pitfalls of the old Date object such as DST bugs, mutability, and inconsistent parsing. Its rollout in Firefox 139 signals readiness for wider adoption, promising developers a robust, standardized toolset for all date and time needs in modern web applications.


Tools & Releases You Should Know About


Let’s speed-run through some of the other big tool updates this week!



And that's it for the thirty-seventh issue of "This Week in JavaScript."


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