Dominic Gannaway @trueadm Twitter profile

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Dominic Gannaway

2 years

Lexical is now open-source! 🎉 None of this would have been possible if it wasn't for the awesome team that work on Lexical full-time! I hope folks get a chance to play around with what we've spent the last 18 months building.

GitHub - facebook/lexical: Lexical is an extensible text editor framework that provides excellent...

Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance. - facebook/lexical

github.com

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Dominic Gannaway

@trueadm

1 year

I’m excited to share that I will be joining Vercel next week. I’ll be joining the awesome folks on the Svelte core team! 🔥

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Dominic Gannaway

@trueadm

1 year

I’ve been working on a new React-like framework in my spare time. It’s fully compiler driven, there’s no virtual DOM, or component re-rendering. There are signals, but they’re never exposed to the developer and they’re also fully compiled to avoid any runtime lookups. And…

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Dominic Gannaway

@trueadm

2 years

We've been building Outline – an extensible text editor library that does things differently. If you use or , you've likely already used it. We're expecting to open source it early 2022. Website coming soon:

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Dominic Gannaway

@trueadm

7 years

I'm excited to announce that I'll be joining Facebook and the React team next month!

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Dominic Gannaway

@trueadm

6 years

I recently spent 2 days on a hackathon project to see if it was possible to render React to HTML at build time with Prepack. I focused on getting our Hacker News benchmark, written in React, working and passing tests. The results were very interesting!

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Dominic Gannaway

@trueadm

6 years

I personally think that 2018 will be the year that JavaScript frameworks start to become JavaScript compilers. Here's a sneak peak at what we've been working on in collaboration with the Prepack team:

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Dominic Gannaway

@trueadm

2 years

For those that don’t already know, I left the React Core team at Meta 2 years ago. Why? I wanted to work on a different problem that is essential to the web — rich text editing/authoring. Specifically around web’s contentEditable.

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Dominic Gannaway

@trueadm

1 year

The problem here isn’t the editor, it’s the browsers’ interpretation of the Selection API around contentEditable. It’s almost impossible to build a decent text editor around contentEditable today - there are so many edge cases battling against you.

░M░A░S░T░O░D░O░N░ ░I░N░ ░B░I░O░

@nikitonsky

1 year

I wonder why no app has figured rich text editing yet. It’s really simple: you allow two positions on block boundary, one inside and one outside.

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Dominic Gannaway

@trueadm

7 months

It's a shame that JavaScript getters/setters on object literals (inside a closure) perform so poorly compared to getters/setters on classes. The difference in all JS VMs is huge – as much as 80x difference in some cases.

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Dominic Gannaway

@trueadm

7 years

Inferno 1.0 is LIVE! Medium post to follow – but a massive thank you to all the core Inferno team. You're awesome!

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Dominic Gannaway

@trueadm

1 year

I’m excited to be sharing what I’ll be doing next! Early next year, I will be joining @TechAtBloomberg The Bloomberg Terminal is based on Chromium so the UI is nearly all DOM rendering. I’ll be working on the JS infra to make the Terminal blazing fast.

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Dominic Gannaway

@trueadm

4 years

The React Core team is joining the Facebook employee walkout in solidarity with the Black community. Facebookʼs recent decision to not act on posts that incite violence ignores other options to keep our community safe. We implore the Facebook leadership to #TakeAction .

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Dominic Gannaway

@trueadm

9 months

I think Signals are essential for front-end web, and if done right, they solve so many problems. I'm looking forward to working with @EisenbergEffect , @littledan , @RyanCarniato , @BenLesh and a few others to try and make this primitive a reality. It'e early days though.

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Dominic Gannaway

@trueadm

6 months

Svelte 5 is going to be epic. We showed you runes, but there’s more to come :)

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Dominic Gannaway

@trueadm

3 months

It’s been epic working on Svelte 5 for the last 9 months. It’s not far from a RC release too! So many ideas, sparks of excitement, eureka moments and complicated and frustrating sessions battling edge cases. It’s funny because after working on the React core team I told myself…

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Dominic Gannaway

@trueadm

6 years

We're looking for contributors for Prepack – . Prepack is a JS ahead-of-time compiler that aims to optimize entire JavaScript applications. If you're interest in helping out – please reach out. We really believe we're on to something here.

GitHub - facebookarchive/prepack: A JavaScript bundle optimizer.

A JavaScript bundle optimizer. Contribute to facebookarchive/prepack development by creating an account on GitHub.

github.com

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Dominic Gannaway

@trueadm

5 months

Svelte is maturing. Svelte 5 will have native support for TypeScript in templates (you still need to do lang="ts" on the script tag). Plus you don't need to use `<slot>` anymore with Svelte 5, which overcomes the difficulties with slot props, and the indirection around what…

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Dominic Gannaway

@trueadm

3 years

After reading through the source of SolidJS and understanding some of the design constraints, I'm really excited about its future. You can see lots of inspiration taken from other libraries, and lots of innovation too. I recommend checking it out too:

GitHub - solidjs/solid: A declarative, efficient, and flexible JavaScript library for building user...

A declarative, efficient, and flexible JavaScript library for building user interfaces. - solidjs/solid

github.com

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Dominic Gannaway

@trueadm

1 year

I can’t wait to bring my performance background to Svelte. Combined with my ideas around compilation, I think we can do some crazy cool things.

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Dominic Gannaway

@trueadm

7 months

So much exciting work has gone into the rewrite of Svelte. I hope folks like the new APIs and improvements to reactivity. :)

Svelte

@sveltejs

7 months

introducing ✨ runes ✨

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Dominic Gannaway

@trueadm

1 year

Today, I am sharing the news that after 6 years, I will be leaving Meta early next year. It’s been an awesome journey and I’ve had the privilege of being able to work on so many great projects, and learn from so many talented people.

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Dominic Gannaway

@trueadm

3 years

I often use JavaScript Maps and Sets and often have to enumerate over them. I benchmarked this about a year ago, and found extracting an array via Array.from and then looping over was fastest. Now it turns out for…of on the Map/Set is fastest. How things change.

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Dominic Gannaway

@trueadm

1 year

A few days ago I was was uninvited to a React event because the organisers thought I was "kicked" off the React Core team. I asked why they thought that was the case and they assumed I left the team because I hadn't done anything in my time on the team.

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Dominic Gannaway

@trueadm

5 years

This is what we've been working on for the last few months. It's a new event system for React that is a complete departure from how events on handled today in React, or the DOM for that matter. The aim is to have a unified, declarative event system that works cross platform.

Andrew Clark

@acdlite

5 years

I’m so excited by the work @trueadm and @necolas are doing on React Flare (experimental), especially this PR: It’s going to make event handling in React drastically, ridiculously, blazingly better

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Dominic Gannaway

@trueadm

2 years

I work on a team that has been working on a new text editor library that we hope to open source next year. Being able to launch it on FB/IG/WP/WA and get signal has been a key indicator if we’re doing it right. It’s hard building a great text editor UX/DX around contenteditable.

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Dominic Gannaway

@trueadm

6 months

I think one of the strangest things about working on Svelte compared to React — so many people understand that React is backed by a team, but somehow Svelte is not. Let me assure you, it’s no different here. Svelte is backed by a team. Svelte might be @Rich_Harris ’s baby, but…

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Dominic Gannaway

@trueadm

3 years

I got asked today an interesting question. If I were to make Inferno today, what would I have done differently. - I wouldn't use React's API - I would make it formally use an ahead-of-time compiler design - Wouldn't abstract over HTML and instead build around abstractions

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Dominic Gannaway

@trueadm

11 months

I've been working on the Svelte core team for the last month and it's been a blast. We've had so many great discussions about the future of Svelte. There is some very exciting and innovative stuff planned. :)

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Dominic Gannaway

@trueadm

7 years

The future of React is going to be amazing. The team has so many amazing ideas and best of all – they're the smartest people I've ever met.

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Dominic Gannaway

@trueadm

10 months

For those of you who use Svelte, what features/changes would you love to see in Svelte 5?

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Dominic Gannaway

@trueadm

9 months

This tweet is almost 5 years old, but I still love the idea today. Aside from that, I still think compilers are awesome. With love and care, they're a genuine way forward towards alienating a whole category of complex UI issues that modern frameworks experience today.

Rich Harris

@Rich_Harris

5 years

@threepointone @youyuxi for anyone following along —my thinking has evolved in the last hour. I don't think hooks are the right direction for Svelte. Instead I want to do something more like this, which we can do because WE'RE A COMPILER, MOFOS

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Dominic Gannaway

@trueadm

1 year

One thing I've always wished JSX had, was the ability to define intermediate statements in a special JSX block – a bit like how you do PHP in <?php … ?>. Having something like a `<? … />` JSX element would improve control flow and improve readability IMO.

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Dominic Gannaway

@trueadm

3 months

Since working on Svelte, I always get asked if I really prefer jsdoc over TypeScript. No, I don’t. Furthermore, if we had type definitions in the language (there’s a proposal for it) then Svelte could go back to using types instead of jsdoc. We just don’t want or need a build…

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Dominic Gannaway

@trueadm

3 years

I'm kind of getting fed up with frameworks prioritizing performance, data-fetching and server-side rendering capabilities over basic UX necessities. It should be a high-priority that frameworks focus on making the web accessible and preventing, if not blocking, bad practices.

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Dominic Gannaway

@trueadm

7 years

Prepack now supports React JSX evaluation (make sure you turn on "reactEnabled" in the options tab):

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Dominic Gannaway

@trueadm

1 year

There’s been a lot of talk about meta-framework performance. Much of the discussion around frameworks tends to be for traditional websites. There’s a whole other category of apps in the finance/collaborative/real-time/messaging space that demand low-overhead runtime perf.

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Dominic Gannaway

@trueadm

3 years

I've been asked a bunch in DMs lately what I've been working on since leaving the React team last year. I can't really say too much about it right now, other than I'm working on an awesome JavaScript text editor library. :)

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Dominic Gannaway

@trueadm

2 years

I came up with a bunch of ideas that eventually led to @lexicaljs . I’m super proud of the project and the core team behind it. I often get told that it’s the “React of rich text editors”. The best part is that Lexical is framework agnostic, so there’s little excuse to try it.

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Dominic Gannaway

@trueadm

6 years

My goal was to see if it was possible to eliminate React completely from the bundle and generate a simple JS file with the minimal logic necessary to render the HTML. Even though I made zero attempt on optimizing the output, the results were great:

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Dominic Gannaway

@trueadm

4 years

It was great catching up with @Rich_Harris again today. For those who don’t know, Rich got me properly interested in JavaScript with his work with Ractive. What a ride it’s been since those days!

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Dominic Gannaway

@trueadm

4 years

I had lots of great disucssions yesterday with @sebmarkbage , @necolas and @dan_abramov . We went down so many rabbit holes and considered so many problem spaces. It ultimately led to a redesign of the prospoal that I've been working on. Here's the PR:

[react-interactions] Add Listener API + useEvent hook by trueadm · Pull Request #17651 · facebook...

Note: This API is intentionally meant to be a low-level way of creating events and assigning listeners to them. It's meant to be verbose so larger building blocks can be created on top of them....

github.com

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Dominic Gannaway

@trueadm

7 years

For those who missed it. My first public talk at React Europe is available online: 50mins in I was super nervous!

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Dominic Gannaway

@trueadm

2 years

@buildsghost We literally just open sourced Lexical:

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Dominic Gannaway

@trueadm

5 years

I often see and hear people talk about how React's most important feature is its "virtual DOM". It really isn't. The "virtual DOM" is a concept and an internal React implementation detail. You should be able to create UIs with React without ever needing to know about it.

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Dominic Gannaway

@trueadm

1 year

@mark_struck I guess that's a good question if you've never heard of me. I worked on flat bundles for React 16, Prepack (AOT compiler project that led to hooks), came up with the naming of hooks, re-wrote the event system for React 17, working experimental a11y APIs and many more things.

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Dominic Gannaway

@trueadm

6 years

I was told that I was the one to blame for the spread of the phrase "blazing fast". So many JS libraries are using it now and apparently I started it with Inferno. Well, Inferno means "a large fire that is dangerously out of control" so at least the term "blazing" was accurate.

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Dominic Gannaway

@trueadm

7 months

I'm looking forward to chatting to Ryan about my journey so far, and the work that's been happening on Svelte 5 :)

Ryan Carniato

@RyanCarniato

7 months

I'm very excited for this week's stream. @trueadm joins me to talk about his incredible work and the latest happenings with @sveltejs 5.

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Dominic Gannaway

@trueadm

7 years

Update on the upcoming Inferno 1.0: - package size reduced, is now only 6kb - now supports controlled input/select/textarea - even faster!

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Dominic Gannaway

@trueadm

6 years

I envisage a future where creating lifecycles and state in React wasn't coupled to class components. What if they were their own primitive within React? Here are some ideas I've been throwing around in a gist, what does everyone think?

1-future-ideas.js

GitHub Gist: instantly share code, notes, and snippets.

gist.github.com

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Dominic Gannaway

@trueadm

6 years

It's great to see @fbOpenSource sponsoring @RollupJS . Thank you to everyone who's been behind Rollup and contributed to the project. Rollup is such a great tool and has really helped improve us improve React's build process.

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Dominic Gannaway

@trueadm

6 years

We are doing some crazy stuff with Prepack right now. It's great to see how far we can push the boundaries.

Sebastian Markbåge

@sebmarkbage

6 years

@ken_wheeler What if you could AOT compile JS to native machine code and WebAssembly without a runtime or GC? 🤗

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Dominic Gannaway

@trueadm

1 year

You don’t need to worry about memoizing everything and effects and useMemo don’t require dependencies. Hooks can be conditional. You can await async data within your components directly (the compiler is smart). And…

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Dominic Gannaway

@trueadm

11 months

There are two DOM APIs that I'd love to exist today. Their usage would be primarily by frameworks and libraries, resulting in less code and fewer bugs and more consistent performance: - reconcileChildNodes(arrOfNodes) - createDocumentFragment({persistent: true}); If only…

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Dominic Gannaway

@trueadm

7 years

True story about web performance. A few years back I was working on an e-commerce single page web app for a major fashion brand. 1/2

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Dominic Gannaway

@trueadm

1 year

I still find it crazy that after so many years, we’re still having to deal with the first request to a website returning HTML. What if it could return a highly optimized version that represented the same package but was smaller in size and a tiny zero parse cost?

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Dominic Gannaway

@trueadm

1 year

It's kind of crazy, after the latest version of Chrome, Inferno is now much faster in the JS framework benchmark. Nothing has really changed in years, yet it still comes in faster than almost anything else out there. Oh, it still has a virtual DOM too.

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Dominic Gannaway

@trueadm

4 years

Another question I've been asked lately - what have I been working on? I'm working on a rewrite of React's event system. We're calling it the "modern event system" internally. The major change is that we don't listen to events on the "document" but rather, the React Root element

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Dominic Gannaway

@trueadm

7 months

People often find it strange that I never use `console.log` to debug things when I'm coding in JavaScript. Personally, using `debugger` statements and breakpoints work better for my mental mindset. I often want to inspect the call-stack, or check various values at their point in…

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Dominic Gannaway

@trueadm

1 year

During my parental leave at Meta, I thought it would be cool to hack on a new JS frontend framework with my partner @woodfsarah . You can imagine it as a mix of some of the best ideas and concepts from React + Solid + Prepack + Inferno + Lexical. It's still early days though…

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Dominic Gannaway

@trueadm

1 year

You can still use idiomatic JS, like if statements, early returns, , destructure props etc. There are however some constraints. You can’t use “let” or mutate objects in the component body - as this makes it far harder to compile and might be a side effect.

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Dominic Gannaway

@trueadm

7 years

@ryanflorence @_tatchi Functional components should be slightly faster in React 16 as there's no instance created to wrap them (unlike React 15).

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Dominic Gannaway

@trueadm

7 years

The great thing about React is that it's a high enough abstraction to change the underlying implementation without anyone knowing or caring.

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Dominic Gannaway

@trueadm

1 year

I honestly think we’ll soon (in the next year) see something that seriously disrupts React’s hold. The amount of variables has always been a catalyst for big change. I personally think healthy competition is be beneficial to the ecosystem. Exciting times.

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Dominic Gannaway

@trueadm

7 years

Inferno now has over 5k stars on GitHub - . I never imagined this would ever happen. Thank you to everyone involved!

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Dominic Gannaway

@trueadm

7 months

Here's another approach that is just as fast as classes too:

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Dominic Gannaway

@trueadm

4 years

Q: Is React a framework or a library? A: It's both.

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Dominic Gannaway

@trueadm

3 years

I decided to share the React Compiler experiment that I was working on a few years ago in my spare time: I didn't have time to continue working on the project, but there are a bunch of ideas in the project that other folks might find useful.

GitHub - trueadm/react-compiler: An experimental React compiler for typed function component trees

An experimental React compiler for typed function component trees - trueadm/react-compiler

github.com

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Dominic Gannaway

@trueadm

7 months

As I alluded to on my stream with @RyanCarniato , one of the great things about Svelte 5's runes is that the compiler can determine whether or not something even needs to be backed by a signal. Signals are great for updates, but can have a non-trivial cost on page load when the…

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Dominic Gannaway

@trueadm

2 months

If you check the source, you'll see it's using Svelte 5!

Rich Harris

@Rich_Harris

2 months

as you wish — here's a SvelteKit version: mostly the same but with a couple of small tweaks. more info at built this in about 45m, and i'm about to hit the back bowls at vail so if i missed anything will fix later ⛷️

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Dominic Gannaway

@trueadm

2 years

Some exciting personal news to share – @woodfsarah and I are expecting twin boys this June! We both can't wait to meet them already :)

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Dominic Gannaway

@trueadm

2 years

Another important implementation detail: Outline's core library doesn't have any dependencies. This means it can be used with any framework. However, we will provide React bindings with Outline when we go open source, as these bindings are already used and battle-tested at Meta.

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Dominic Gannaway

@trueadm

1 year

To be clear. The limitations are only constraints for now. Limiting lets etc can be loosened, it just takes more time to make this sort of problem space work. It’s far easier to start constrained than the other way around.

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Dominic Gannaway

@trueadm

2 months

So I got fed up with my prediction and just decided to work on Svelte so that everyone else would be encouraged to catch up. Joking aside, I think 2024 will be the year you see what’s possible with compilers. With React Forget on the horizon, I think we’ll start to see more…

Dominic Gannaway

@trueadm

1 year

This tweet didn’t scale as well as it should have. I do however think this year will be that year. JavaScript frameworks will start to become “proper” compilers, except some exceptions like Svelte, which already are.

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Dominic Gannaway

@trueadm

17 days

The Signals proposal is now Stage 1. Very exciting!

Rob Palmer

@robpalmer2

17 days

ECMAScript excitement 😉 Congrats to @JatinRamanathan @littledan & @wycats on advancing the Signals proposal to Stage 1 today @TC39 🎉 Thanks to proposal author @EisenbergEffect and the many other framework representatives who have contributed so far 👍

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@trueadm

7 years

Inferno (beta42) now has dev tools support via React's dev tools extension! Thanks @preactjs for the ideas on how to proxy it :)

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@trueadm

2 years

Who remembers Prepack? Still to this day I wish the project was going. So many ideas, ahead of their time, came from that project alone.

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Dominic Gannaway

@trueadm

7 years

Awesome article regarding server-side rendering improvements in React 16. Worth a read if this interests you! :)

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@trueadm

1 year

@ryanflorence You should see what I’m cooking up. It’s a game changer in terms of perf, bundle size and DX. Like a mix of React, Solid and Svelte. Compiled with something that goes much further than any framework compiler before.

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@trueadm

7 years

This is something that I've been trying to get others to do for a while now. It can be the difference between a deopt or not. :)

Michael Haeuslmann

@michaelhaeu

7 years

Not only is declarative code more readable, it also produces beautiful byte code and is therefore faster. Thanks @bmeurer @munichnug

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@trueadm

10 months

I really like the idea of "signals" being an implementation detail of a framework. If the core philosophy is to enable reactivity for a UI, then the implementation details aren't really that important. Furthermore, it allows for changes to those details without breaking changes.

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@trueadm

7 years

@trueadm adding a fake (but very cool looking) 1-2 second load on each page/route load. Sales jumped back up after deploying the change 3/3

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Dominic Gannaway

@trueadm

10 months

@t3dotgg Wait till you see what we’re planning with Svelte 5 and future versions. Nothing is “safe” forever when innovation lurks around the corner.

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Dominic Gannaway

@trueadm

6 years

All of this was made possible by the progress we've made on Prepack and how much it's capable of handling now. We still have a lot of work to go and this experiment in Prepack is by no means usable (it's full of TODOs and hasn't been tested on anything other than this benchmark!)

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Dominic Gannaway

@trueadm

7 years

Inferno reaches 7k stars! 🔥🎉 A massive thank you to everyone involved and for those that follow the project!

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Dominic Gannaway

@trueadm

7 years

@dan_abramov and we'll be using Rollup to bundle React! :) @Rich_Harris

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Dominic Gannaway

@trueadm

1 year

I’m so happy for @threepointone and the journey he’s been on so far. He’s one of nicest and smartest people I know too, not to mention I’m so excited about what’s to come in the future with @partykit_io . 🔥💰

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Dominic Gannaway

@trueadm

9 months

For those wondering what I mean by a primitive, I mean it's part of the ECMAScript language. It would be great if a whole class of issues were solved at platform time, whilst enabling frameworks to drop several KB in JS to make it happen.

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Dominic Gannaway

@trueadm

1 year

What was interesting about the responses to this tweet is that people got hung up with signals and the fact I opted to use React’s APIs. Signals and React aren’t even that important really. It’s the compiler that is. Imagine a UI compiler that leverages AI to self-improve…

Dominic Gannaway

@trueadm

1 year

I’ve been working on a new React-like framework in my spare time. It’s fully compiler driven, there’s no virtual DOM, or component re-rendering. There are signals, but they’re never exposed to the developer and they’re also fully compiled to avoid any runtime lookups. And…

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Dominic Gannaway

@trueadm

7 years

Over the past week, there's been lots of people claiming that "Dom" is slow. Fair enough, I get the point already. :(

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Dominic Gannaway

@trueadm

6 years

@thiagoviski @dan_abramov @_reznord I am that person. I also had £25k of student loan debt to pay back for the privilege. :)

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Dominic Gannaway

@trueadm

6 years

I've been thinking about how state and lifecycle events might be handled in React. What if they weren't coupled to the component – maybe we've been getting that bit wrong. What if they were independent and declarative, for example a state reducer:

example-c.js

GitHub Gist: instantly share code, notes, and snippets.

gist.github.com

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Dominic Gannaway

@trueadm

1 year

I know it's highly unlikely, but I wish there was a reactive form of binding in JavaScript as a primitive. Like: let bound x = 1 let bound y = x + 1; x = 2: console.log(y) This would open up so many opportunities IMO.

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Dominic Gannaway

@trueadm

8 years

Inferno has hit 1k stars on GitHub. Great stuff! Thanks to everyone who liked the project and hard work!

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Dominic Gannaway

@trueadm

1 year

This tweet didn’t scale as well as it should have. I do however think this year will be that year. JavaScript frameworks will start to become “proper” compilers, except some exceptions like Svelte, which already are.

Dominic Gannaway

@trueadm

6 years

I personally think that 2018 will be the year that JavaScript frameworks start to become JavaScript compilers. Here's a sneak peak at what we've been working on in collaboration with the Prepack team:

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Dominic Gannaway

@trueadm

1 year

I can't stress this enough. I've had the fortune of working with some of the best designers and engineers I've met, and I've always had situations where I've had to remind them of their decisions and the implications it has on accessibility. Accessibility should be de-facto.

Dominic Gannaway

@trueadm

1 year

@klappy I think it's really interesting that, as an industry, we're happy to ship hacky shit as long as it works for people that have no accessibility issues. TBH is a terrible perception. Ever user matters. Make your UI work for everyone, don't cut corners with hacks and show empathy.

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Dominic Gannaway

@trueadm

7 years

Working on my slides for @ReactEurope . I've named my first ever public conference talk: "What I Learned Benchmarking React". Super nervous!

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Dominic Gannaway

@trueadm

1 year

The compiler can detect bad patterns that do this and tell you fix your code. It can also further optimize with TypeScript annotations too.

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Dominic Gannaway

@trueadm

1 year

I don’t think today’s meta framework address this space enough. A lot of effort has been put into making initial interaction fast, but these classes of app demand different requirements. The irony is they’re also tend to come from clients with the most capital to invest.

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Dominic Gannaway

@trueadm

1 year

Is there a DOM node that has no impact on visual/layout that can be used as a form of marker? Sort of like a comment node, but one that you can lookup via a query selector? I also tried using an element with display: contents, but that doesn't seem to work well.

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