JavaScript performance beyond bundle size

The many ways we can approach JavaScript performance.

Does shadow DOM improve style performance?

Short answer: Kinda. It depends.

The balance has shifted away from SPAs

“Single-page applications are no longer the cool kids they once were 10 years ago.”

A beginner’s guide to Chrome tracing

The tool that can help you debug a tricky web performance problem.

Shadow DOM and accessibility

The trouble with ARIA and how we might solve the problem.

Use web components for what they’re good at

“The trick is leveraging their strengths while avoiding their pitfalls.”

Let’s learn how modern JavaScript frameworks work

Building one is the path to comprehension.

Shadow DOM and the problem of encapsulation

Shadow DOM’s accomplishment in web components.

Bugs I’ve filed on browsers

“One of the most useful things a web developer can do.”

The continuing tragedy of emoji on the web

Websites still need a fix for consistent emoji display.

Rendering optimization with CSS ‘content-visibility’

How a new-ish CSS feature can boost web performance.

Web components are okay

“They may not be the future for you – that’s great!”

Rewriting JavaScript tools in ‘faster’ languages?

Skepticism arises from real objective concerns.

AI ambivalence

”This is how I feel using generative AI: like a babysitter.”

Selfish reasons for building accessible UIs

“You can build accessibly without having a bleeding heart.“

Why browsers throttle JavaScript timers

“setTimeout(0) is not really setTimeout(0).”

“Someday years from now we will look back on the era when we were the last generation to code by hand. We’ll laugh and explain to our grandkids how silly it was that we typed out JavaScript syntax with our fingers. But secretly we’ll miss it.”