SeattleJS

Sergey is standing by the podium showing VSCode with his functionalscript tests running.

Next up Sergei from @nolock-social.bsky.social is telling us about FunctionalScript, a purely functional subset of JS.

One of the conventions is that test.f.js files are tests, and if they export a function it is treated as a test. Super easy to get started!

Evan is in front of a massive tv with his slides containing a diagram talking about Durable Execution.

Another exciting month of SeattleJS talks!

Starting us off today is Evan from GenSX telling us about durable execution for AI workflows. Unlike other durable execution approaches, GenSX uses JSX!

A crowd of ~60 people for a presentation. All the seats are filled and another dozen are standing in the back of the room

SeattleJS is in session and it is PACKED! Great to see everyone here in person.

SeattleJS: Web Tech Talks - April · Luma 🎉 Get ready to learn and connect at SeattleJS! 🎉 Prepare for an evening filled with fun, networking, and learning. Whether you're a seasoned developer or…

🚨🚨🚨 SEATTLEJS IS HAPPENING TONIGHT 🚨🚨🚨

This is NOT a drill!

- learn about deliberate practice to improve at the craft
- get a demo of a deliberate typing practice tool made by a member of the SeattleJS community
- hear how @brianfive.xyz uses MCP to explore a Bluesky feed

RSVP & details here:

I'm excited to talk to @seattlejs.com tonight. Come join me as we discuss Deliberate Practice for developers.

Hi Seattle friends! 👋 Don't miss the @seattlejs.com meetup tonight! Here's what they have in store:

- Talks from @softwareascraft.com and @brianfive.xyz
- Fun hangs with fellow devs
- PLUS you'll get a promo code to get $50 off your CascadiaJS ticket 🎟️

Link to RSVP below ⬇️

Dog on sofa

Photo of hotel room with a purple sofa and desk.

Photo of a bike.

Photo of a hotel lobby with a gray couch and ornate metalwork behind it.

We've partnered with 2 boutique hotels in downtown Seattle for CascadiaJS 2025. Here's why you'll love them:

- Pets stay for FREE 🐶 😻
- Quick walk to the venue 🚶🏽‍♀️
- Yoga mats in every room 🧘
- Loaner bikes 🚲
- Welcome drink at the Hotel Vintage 🍷

Don't miss out, book soon!

cascadiajs.com/2025

SeattleJS Workshops - March · Luma 🎉 Get ready to learn and connect at SeattleJS! 🎉 Prepare for an evening filled with fun, networking, and learning. Whether you're a seasoned developer or…

Wondering what to do tonight? Come learn about writing CLIs using NodeJS with @simonplend.bsky.social!

RSVPs still open!

Kenny presenting his title slide for the talk “pushing the limits of big data in the browser”

Wrapping up the night is Kenny Daniel, founder of Hyperparam.app. Kenny is here to tell us about pushing the limits of big data in the browser and some of the open source solutions he’s built to make it possible to work with massive data sets in the browser.

Will is presenting at the front of the room. His title slide shows SpongeBob looking very dehydrated

Up next we’ve got @willm62.bsky.social telling us about writing DRY code without getting parched!

An audience of ~60 people watching with rapt attention as Matt tells us about using react with Wordpress

And we’re off! Starting us off is Matt Jennings talking about WordPress ❤️ React

SeattleJS March meetup is THIS WEDNESDAY! We'll have great talks, tasty food, and a super cool new venue in Cap Hill - Foundations

Please RSVP if you're planning to come so we know how much food to get!

SeattleJS: Web Tech Talks - March · Luma This meetup will have food sponsored by Hyperparam, the missing UI for dataset exploration and curation. 🎉 Get ready to learn and connect at SeattleJS!…

After talks, stick around for our social hour! It's a great chance to meet other developers, follow up with speakers, find job opportunities, and chat about tiktok's new JS runtime, PrimJS!

function CTA(dev) {
RSVP( dev, lu.ma/m6wyho3t ).then(
event => event.attend()
);
}
CTA(you);

Black and white portrait of Kenny with a serious expression in a black t-shirt. The background is matte gray and Kenny's hair is styled up.

We'll wrap up the night with Kenny Daniel of Hyperparam.app (our food sponsor for the meetup!) talking about Pushing the Limits of Big Data in the Browser.

Kenny will share a radical new take on how to architect large data applications using JavaScript in the browser with Hyparquet and HighTable.

Will smiling excitedly with his mouth open and a big thumbs up. Will is laying sideways and has a couch behind him.

Next up is @willm62.bsky.social on some software engineering best practices. Will's lightning talk is going to share a tale from the trenches about making code _too_ DRY and how it ended up parched instead.

Matt Jennings smiling wearing a blue collared shirt in front of a blurred white and gray background.

1st talk is a full session on marrying Wordpress and React using blocks, presented by Matt Jennings!

Matt will discuss how he integrated his WP plugin with the WP admin and front-end and will briefly talk about other WP and React-related topics.

SeattleJS: Web Tech Talks - March · Luma This meetup will have food sponsored by Hyperparam, the missing UI for dataset exploration and curation. 🎉 Get ready to learn and connect at SeattleJS!…

Our march meetup is coming up soon on March 12th.

Here's the lowdown:
- Food sponsored by hyperparam.app
- 2 full talks and 1 lightning talk
- our amazing SeattleJS web developer community will be there in person
- Doors open at 5:30PM, talks start at 6:30PM

Read on for talk details or RSVP now 👇

Last night was an absolute blast! Thanks to everyone who came, TC39 for the fantastic talks, and DocuSign for hosting us ❤️ See y'all next time!

Google Maps Find local businesses, view maps and get driving directions in Google Maps.

Like a good startup, we are pivoting! Tonight's after party is at Owl N Thistle. See you there!

maps.app.goo.gl/2DkStPwwcEzx...

Mathieu speaking to a room of people about realms in JavaScript

Don't what a realm is in JavaScript? Ask @mhofman.bsky.social ! He is talking all about them :)

Ashley in front of a group of developers talking about ts-blank-space

Next up is Ashley is talking about ts-blank-space, a library you can use to speed up your dev builds!

Shane speaking over a slide describing some common misconceptions about internationalization

Shane just finished a run through of all the great internationalization features in JS. Thanks for helping make our apps accessible to everyone!

Nicolo shared with us about import defer to make loading your apps faster!

Philip in front of a room presenting a slide titled "Temporal: modern dates and times in JavaScript"

The new feature that has been the talk of night is getting the spotlight! Philip is talking about the Temporal API 🕜

A speaker presenting slides about ShadowRealm

Linus is next up giving an overview of updates from this week's TC39 plenary meeting

A room full of people facing a speaker at a podium presenting slides on a screen about JavaScript features

Here we go! Our TC39 meetup is happening now! Join the livestream at the link below. @robpalmer.bsky.social is kicking off our full house telling us about what TC39 is all about how JavaScript is created.

docusign.zoom.us/j/94134179467

SeattleJS TC39 meetup is TONIGHT, 5:30 @ Docusign tower!

We've got all the ingredients for a perfect meetup:
- a world-class lineup of speakers
- a fantastic venue
- an amazing community
- tasty food generously provided by our hosts at Docusign

The only thing we're missing is you! See you there

We will also have a live stream option! If you can’t make it in person, still RSVP to be sent the livestream details and attend virtually.

@seattlejs.com February live blogging thread!

A room full of people watching a presenter talk over a projected slide with the words "Why is Git Like that?"

Next up is Lito, breaking down and rebuilding Git for us, showing all the subtle design decisions that went into what we use today