DEV Community

Alex MacArthur profile picture

Alex MacArthur

Bossing around computers in made-up languages.

Location Nashville, TN Joined Joined on  Personal website https://picperf.io github website twitter website

Education

Concordia College - Moorhead, MN

Work

Senior Software Engineer at Ramsey Solutions

Writing Debut
Six Year Club
Five Year Club
Four Year Club
Three Year Club
Two Year Club
One Year Club

Pin Pinned

Why I Like Using Maps (and WeakMaps) for Handling DOM Nodes
alexmacarthur profile

Why I Like Using Maps (and WeakMaps) for Handling DOM Nodes

#javascript #performance
1
Comments 1
6 min read
When a JavaScript WeakMap() Actually Came in Handy
alexmacarthur profile

When a JavaScript WeakMap() Actually Came in Handy

#javascript #ecmascript #weakmap #performance
5
Comments 1
5 min read
You Might As Well Use a Content Security Policy
alexmacarthur profile

You Might As Well Use a Content Security Policy

#csp #security #xss
Comments
7 min read

Want to connect with Alex MacArthur?

Create an account to connect with Alex MacArthur. You can also sign in below to proceed if you already have an account.

Create Account
Already have an account? Sign in
Avoiding a "Host Permission" Review Delay When Publishing a Chrome Extension
alexmacarthur profile

Avoiding a "Host Permission" Review Delay When Publishing a Chrome Extension

#chrome #chromium #extension
Comments
4 min read
Collect All Requested Images on a Website Using Puppeteer
alexmacarthur profile

Collect All Requested Images on a Website Using Puppeteer

#puppeteer #images
Comments
5 min read
TIL: inline event handlers still fire when passed to React's dangerouslySetInnerHTML
alexmacarthur profile

TIL: inline event handlers still fire when passed to React's dangerouslySetInnerHTML

#react #xss #security
Comments
5 min read
Streaming Text Like an LLM with TypeIt (and React)
alexmacarthur profile

Streaming Text Like an LLM with TypeIt (and React)

#typewriter #animation
Comments
3 min read
I didn't know you could use sibling parameters as default values in functions.
alexmacarthur profile

I didn't know you could use sibling parameters as default values in functions.

#javascript #functions #parameters #arguments
Comments
3 min read
JamComments Now Offers AI-Powered Moderation
alexmacarthur profile

JamComments Now Offers AI-Powered Moderation

#ai #blogging
Comments
3 min read
It’s Probably Worth Converting that GIF to an Animated WebP
alexmacarthur profile

It’s Probably Worth Converting that GIF to an Animated WebP

#webp #gif #performance
Comments
5 min read
Adding Structured Data in Astro's Starlight Documentation Framework
alexmacarthur profile

Adding Structured Data in Astro's Starlight Documentation Framework

#comments #documentation #jsonld
Comments
4 min read
The Machines Would Appreciate More Structured Data
alexmacarthur profile

The Machines Would Appreciate More Structured Data

#seo #metadata
Comments
8 min read
Looking Forward to (Hopefully) Not Needing Responsive Images One Day
alexmacarthur profile

Looking Forward to (Hopefully) Not Needing Responsive Images One Day

#performance #html
Comments
3 min read
You Might Consider Using an Image Sitemap
alexmacarthur profile

You Might Consider Using an Image Sitemap

#seo #sitemap
Comments
6 min read
The Architecture Might Not Be the Problem
alexmacarthur profile

The Architecture Might Not Be the Problem

#architecture #patterns
Comments 1
4 min read
Transform Image URLs with a Simple Cloudflare Worker
alexmacarthur profile

Transform Image URLs with a Simple Cloudflare Worker

#cwv #performance
Comments
7 min read
Maintain a Healthy Sense of Caution Whenever Running a `curl|bash` Command
alexmacarthur profile

Maintain a Healthy Sense of Caution Whenever Running a `curl|bash` Command

#bash #curl #security
Comments
5 min read
It's never been easier to performantly put images on the web.
alexmacarthur profile

It's never been easier to performantly put images on the web.

Comments
6 min read
Why Am I Getting a 502 Bad Gateway After Turning on Plausible?
alexmacarthur profile

Why Am I Getting a 502 Bad Gateway After Turning on Plausible?

#analytics #502
Comments 1
2 min read
How to Back Up Your Self-Hosted Plausible Analytics Data
alexmacarthur profile

How to Back Up Your Self-Hosted Plausible Analytics Data

#analytics #backups
Comments
3 min read
Raise the API Rate Limit for a Self-Hosted Instance of Plausible
alexmacarthur profile

Raise the API Rate Limit for a Self-Hosted Instance of Plausible

#analytics
Comments
3 min read
Let's Bring Back JavaScript's `with()` Statement
alexmacarthur profile

Let's Bring Back JavaScript's `with()` Statement

#javascript #ecmascript
Comments
11 min read
Server-rendering your UI is expensive!
alexmacarthur profile

Server-rendering your UI is expensive!

#server #rendering
Comments
1 min read
You should still look at your site with JavaScript disabled.
alexmacarthur profile

You should still look at your site with JavaScript disabled.

#javascript #performance #cwv
Comments
1 min read
Strive for Being "Feature-Complete"
alexmacarthur profile

Strive for Being "Feature-Complete"

#software #opensource
Comments
1 min read
There Are a Lot of Ways to Hide Stuff in the Browser
alexmacarthur profile

There Are a Lot of Ways to Hide Stuff in the Browser

#css #a11y #html
Comments
9 min read
Lighthouse is Not Your End User
alexmacarthur profile

Lighthouse is Not Your End User

#performance #cwv
Comments
1 min read
Deserializing Polymorphic Lists with Kotlin, Jackson, and Spring Boot
alexmacarthur profile

Deserializing Polymorphic Lists with Kotlin, Jackson, and Spring Boot

#kotlin #typescript #serialization
Comments
6 min read
Executing Dangerously Injected Scripts Inside React Components
alexmacarthur profile

Executing Dangerously Injected Scripts Inside React Components

#react #synchronous #xss
3
Comments
6 min read
For Maximum Accessibility, Be Careful About Using a .dev Domain
alexmacarthur profile

For Maximum Accessibility, Be Careful About Using a .dev Domain

#tld #domains #dns
Comments
5 min read
Don't Let Visitors Know Your Origin Server Exists
alexmacarthur profile

Don't Let Visitors Know Your Origin Server Exists

#performance #caching #optimization
2
Comments
8 min read
PicPerf's Impact on Jane Ross Tutoring's Website
alexmacarthur profile

PicPerf's Impact on Jane Ross Tutoring's Website

#performance #optimization
Comments
2 min read
TIL: The Download Attribute Doesn’t “Just Work” for Cross-Origin Resources
alexmacarthur profile

TIL: The Download Attribute Doesn’t “Just Work” for Cross-Origin Resources

#html #downloads #navigation
Comments
3 min read
Get All That Network Activity Under Control with Priority Hints
alexmacarthur profile

Get All That Network Activity Under Control with Priority Hints

#performance #cwv #hints
2
Comments
9 min read
Your Cache Headers Could Probably be More Aggressive
alexmacarthur profile

Your Cache Headers Could Probably be More Aggressive

#performance #caching
1
Comments
6 min read
Reviewing PicPerf's Impact on SongwriterCity.com
alexmacarthur profile

Reviewing PicPerf's Impact on SongwriterCity.com

#performance #business #images
Comments
3 min read
Building a Two-Way Data Binding Hook for Form Inputs in React
alexmacarthur profile

Building a Two-Way Data Binding Hook for Form Inputs in React

#react #javascript #forms #vue
Comments 2
5 min read
Taking Variable Fonts for a Spin
alexmacarthur profile

Taking Variable Fonts for a Spin

#fonts #performance #ui
Comments
5 min read
Run Puppeteer with Docker on Fly.io
alexmacarthur profile

Run Puppeteer with Docker on Fly.io

#docker #puppeteer #chrome
Comments
5 min read
How to Better Leverage Browser Preloading
alexmacarthur profile

How to Better Leverage Browser Preloading

#preloading #performance #javascript
Comments
7 min read
Mount a Multi-Page SPA into an App with Server-Side Routing
alexmacarthur profile

Mount a Multi-Page SPA into an App with Server-Side Routing

#spa #react #routing #laravel
2
Comments
5 min read
Why I Moved from Notion to Ghost for My Headless CMS
alexmacarthur profile

Why I Moved from Notion to Ghost for My Headless CMS

#blogging #cms
2
Comments
6 min read
Picking the Right Tool for Maneuvering JavaScript's Event Loop
alexmacarthur profile

Picking the Right Tool for Maneuvering JavaScript's Event Loop

#javascript
Comments
12 min read
Elegant Memoization with Ruby’s .tap Method
alexmacarthur profile

Elegant Memoization with Ruby’s .tap Method

#ruby #performance
Comments
5 min read
Options for Navigating JavaScript's Event Loop
alexmacarthur profile

Options for Navigating JavaScript's Event Loop

#javascript #performance
Comments
12 min read
If Possible, Don't Run Prism.js in the Browser
alexmacarthur profile

If Possible, Don't Run Prism.js in the Browser

#javascript #performance
Comments
5 min read
Consider Animating Your Canvas in a Web Worker
alexmacarthur profile

Consider Animating Your Canvas in a Web Worker

#javascript #performance
Comments
4 min read
More Elegant Destructuring with JavaScript Generators
alexmacarthur profile

More Elegant Destructuring with JavaScript Generators

#javascript
Comments
3 min read
Use a MutationObserver to Handle DOM Nodes that Don’t Exist Yet
alexmacarthur profile

Use a MutationObserver to Handle DOM Nodes that Don’t Exist Yet

#mutationobserver #polling #javascript
Comments
5 min read
You’ve Got Options for Removing Event Listeners
alexmacarthur profile

You’ve Got Options for Removing Event Listeners

#javascript #events
Comments
5 min read
Use the .matches() Method to Determine if a Selector Matches an Element
alexmacarthur profile

Use the .matches() Method to Determine if a Selector Matches an Element

#javascript #html
Comments
3 min read
What I Like About Astro
alexmacarthur profile

What I Like About Astro

#astro #performance #jamstack
Comments
7 min read
How to Lazy Load Disqus for Improved Site Performance
alexmacarthur profile

How to Lazy Load Disqus for Improved Site Performance

#performance #blogging
Comments
4 min read
Keep Using Disqus if You Don’t Care About SEO, Performance, and User Privacy
alexmacarthur profile

Keep Using Disqus if You Don’t Care About SEO, Performance, and User Privacy

#performance #blogging #seo #privacy
Comments
8 min read
When I Actually Needed useLayoutEffect() in React
alexmacarthur profile

When I Actually Needed useLayoutEffect() in React

#react #performance #hooks
Comments
5 min read
Serving Notion Presigned Images with Cloudflare Workers
alexmacarthur profile

Serving Notion Presigned Images with Cloudflare Workers

#cloudflare #edge #notion #jamstack
6
Comments
9 min read
I’ve Boarded the SSG Train Again
alexmacarthur profile

I’ve Boarded the SSG Train Again

#jamstack #ssg #remix #ssr
1
Comments
10 min read
Why Can’t You .forEach() Over Empty Array Items?
alexmacarthur profile

Why Can’t You .forEach() Over Empty Array Items?

#javascript #loop #foreach #iterator
3
Comments 2
3 min read
Using Vite to Develop an SPA in the Context of a Production Page
alexmacarthur profile

Using Vite to Develop an SPA in the Context of a Production Page

#vite #spa #proxy
Comments
9 min read
When DOM Updates Appear to Be Asynchronous
alexmacarthur profile

When DOM Updates Appear to Be Asynchronous

#javascript #animation #performance
1
Comments
9 min read
Why I Like Tailwind CSS
alexmacarthur profile

Why I Like Tailwind CSS

#tailwindcss #css #styling #frameworks
5
Comments 1
7 min read
Don't Feel Bad About Using XMLHttpRequest
alexmacarthur profile

Don't Feel Bad About Using XMLHttpRequest

#ajax #fetch #xmlhttprequest #javascript
8
Comments 1
12 min read
loading...