Front End World

The present and the future of SPAs in React

Single page applications for the win

https://www.felgus.dev/blog/future-spa

A Primer on Focus Trapping

Focus trapping is about managing focus within an element, such that focus always stays within it. The whole process sounds simple in theory, but it can quite difficult to build in practice, mostly because of the numerous parts to you got to manage.

https://css-tricks.com/a-primer-on-focus-trapping/

Public CSS Custom Properties in the Shadow DOM

The definitive guide to using public CSS Custom properties to configure web components externally. Surely no one will ever write about this topic again.

https://michaelwarren.dev/blog/css-variables-in-wc/

Designing for User Font-size and Zoom

Using modern CSS units and math functions

https://www.oddbird.net/2025/07/22/size-preferences/

Public and private CSS cascade layers in a design system

One of the most important native modern CSS features I’m using in Kelp UI is cascade layers and the @layer at-rule.

https://gomakethings.com/public-and-private-css-cascade-layers-in-a-design-system/

Frontend Performance Checklist

In the speed-obsessed world of today, better performance comes with serious business gains. This frontend performance checklist is a cumulative list of items that we at Crystallize found important in 2025 when creating a Superfast web application.

https://crystallize.com/blog/frontend-performance-checklist

How To Monitor Single Page Application Performance

Single-page apps came with special performance challenges. Learn how you can gather actionable data on your website performance and fix common SPA performance issues.

https://www.debugbear.com/blog/single-page-application-monitoring

Make React Components With XMLUI, a Visual Basic for the AI Era

XMLUI is a new components builder that takes its inspiration from Visual Basic in the 1990s, except it's for React components and modern CSS.

https://thenewstack.io/make-react-components-with-xmlui-a-visual-basic-for-the-ai-era/

Iterator helpers: The most underrated feature in ES2025

Unlock the power of iterator helpers in ES2025 to write memory-efficient, lazy JavaScript pipelines that scale from streams to infinite data.

https://blog.logrocket.com/iterator-helpers-es2025/

A First Look at the Interest Invoker API (for Hover-Triggered Popovers)

Chrome 139 is experimenting with Open UI’s proposed Interest Invoker API, which would be used to create tooltips, hover menus, hover cards, quick actions, and other types of UIs for showing more information with hover interactions.

https://css-tricks.com/a-first-look-at-the-interest-invoker-api-for-hover-triggered-popovers/

A Friendly Introduction to SVG

SVGs are one of the most remarkable technologies we have access to on the web. They’re first-class citizens, fully addressable with CSS and JavaScript. In this tutorial, I’ll cover all of the most important fundamentals, and show you some of the ridiculously-cool things we can do with this massively underrated tool. ✨

https://www.joshwcomeau.com/svg/friendly-introduction-to-svg/

It’s time for modern CSS to kill the SPA

Native CSS transitions have quietly killed the strongest argument for client-side routing. Yet people keep building terrible apps instead of performant websites.

https://www.jonoalderson.com/conjecture/its-time-for-modern-css-to-kill-the-spa/

Angular has grown up — and the best is yet to come

It’s never been a better time to be an Angular dev. Reflect on the highlights of Angular's evolution from its early days to the v20 release.

https://blog.logrocket.com/angular-has-grown-up/

Why React Didn’t Kill XSS: The New JavaScript Injection Playbook

JavaScript injection attacks surged in 2024, hitting major brands via Polyfill.io. Learn why frameworks failed.

https://thehackernews.com/2025/07/why-react-didnt-kill-xss-new-javascript.html

Publishers cry foul over W3C crusade to rid web of third-party cookies

Exclusive: Advocacy group tells UK competition watchdog proposal favors Google

https://www.theregister.com/2025/07/29/mow_w3c_cookie_complaint/

Making a Masonry Layout That Works Today

I went on to figure out how make masonry work today with other browsers. I'm happy to report I've found a way — and, bonus! — that support can be provided with only 66 lines of JavaScript.

https://css-tricks.com/making-a-masonry-layout-that-works-today/