A 10x Faster TypeScript
Today I’m excited to announce the next steps we’re taking to radically improve TypeScript performance.
weeklyfoo #76 / 2025-03-17typescriptperformance
📰 performance
Do you know how much your computer can do in a second?
Let’s find out how well you know computers! All of these programs have a variable NUMBER in them. Your mission: guess how big NUMBER needs to get before the program takes 1 second to run.
weeklyfoo #65 / 2024-12-30quizperformance
Faster Connectivity !== Faster Websites
Getting started with Web Performance
How I brought LCP down to under 350 ms for Google-referred users on my website
Laying the foundation for super-fast performance with Signed Exchanges (part 1 of 8)
weeklyfoo #71 / 2025-02-10performance
How to deliver bad news when it's not your fault
People tend to shoot the messenger. Here’s how to avoid the negative halo of bad news.
weeklyfoo #52 / 2024-09-30performance
How to fix slow loading apps
How often have you worked on a slow javascript web app that randomly just seemed to slow to a crawl when loading for users?
weeklyfoo #41 / 2024-07-14performance
How To Hack Your Google Lighthouse Scores In 2024
Do perfect Lighthouse scores mean the performance of your website is perfect? As it turns out, Lighthouse is influenced by a number of things that can be manipulated and bent to make sites seem more performant than they really are, as Salma Alam-Naylor demonstrates in several experiments.
weeklyfoo #37 / 2024-06-17performancelighthouse
How To Improve INP - Yield Patterns
Tips for better INP - await-interaction-response vs yieldToMain - yieldUnlessUrgent
weeklyfoo #42 / 2024-07-22performance
How To Improve INP: React
In-depth article on which patterns can be uses to improve Interaction-to-Next-Paint (INP) when using React.
weeklyfoo #62 / 2024-12-09reactinpperformance
How web bloat impacts users with slow devices
Is my host fast yet?
Real-world server response (Time to First Byte) latencies, as experienced by real-world users navigating the web.
weeklyfoo #32 / 2024-05-13performance
Latency numbers every frontend developer should know
A frontend take on Jeff Dean’s Latency Numbers Every Programmer Should Know.
weeklyfoo #30 / 2024-04-29performance
Measuring Developer Experience With The DevEx Framework
The DevEx framework exists to solve the biggest challenge of developer experience initiatives - measuring them. Learn why this framework is helping orgs everywhere improve developer happiness.
weeklyfoo #42 / 2024-07-22performance
Monitor your local and real-user Core Web Vitals performance in DevTools
Patterns for Memory Efficient DOM Manipulation with Modern Vanilla JavaScript
I’ll discuss best practices to avoid excess memory usage when managing updating the DOM to make your apps blazingly fast.
weeklyfoo #44 / 2024-08-05performance
Preloading files to reduce download chains in the browser
React Scan CLI
Check performance issues without installing anything.
weeklyfoo #61 / 2024-12-02reactcliperformance
React.js Performance Guide
State of Node.js Performance 2024
This article exclusively compares Node.js versions without drawing parallels to other JavaScript runtimes. The intent is to highlight the platform’s internal progress—its performance gains, regressions, and the factors driving these changes.
weeklyfoo #64 / 2024-12-23nodejsperformance
The ACE technique for starting new things
The Disappointment Frontier
Keeping your team far from reality can cause a big fat mess.
weeklyfoo #35 / 2024-06-03performancemanagement
This is why you're not shipping
Tying Engineering Metrics to Business Metrics
Use A Work Journal To Recover Focus Faster And Clarify Your Thoughts
Web Performance Calendar
Ten optimisation tips for an initial web performance audit
weeklyfoo #12 / 2023-12-24performance
Web Performance Guide
Here’s everything you need to know to master website monitoring, analytics, and diagnostics.
weeklyfoo #40 / 2024-07-08performance
What is INP and why you should care
INP = Interaction to Next Paint, and it will replace First Input Delay (FID) on March 12
weeklyfoo #25 / 2024-03-25performance
Why you should have a brag document
It’s your secret weapon for performance reviews and job interviews.
weeklyfoo #43 / 2024-07-29performance
Your Company's Problem is Hiding in Plain Sight - High Work-In-Progress (WIP)