Erik Rasmussen 👨💻🇺🇸🇪🇸
@erikras
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An American in Spain 🇺🇸🇪🇸 Author of @reduxform and @finalformjs . Building the best CRM ever at @attio . 👂 @happyhourdotfm
Spain
Joined July 2007
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This is a demo I built in about 3 hours – much of it learning drag-n-drop – over a year ago to show off the power of 🏁 React
@finalformjs
.
💥It uses one form to generate another, in realtime.💥
Play with it here:
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When the Senior Developer arrives to fix the bug...
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When people make demands in Open Source issues...
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Frontend devs when some teenager releases a new JavaScript framework
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In Prague they have several shops where all they sell are debugging tools.
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#TypeScript
Pro Tip: When passing around unique identifiers of objects, select the type of the identifier right off of the object type.
- More refactor-proof 🔒
- Less cognitive load 🤯
- Much more legible to others 🧐
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My frontend engineer brain read this life hack the wrong way.
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useAffect() – for when you need to pretend that you still love React hooks
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Did you know these are all individual <div>s animated with CSS? 🤯
#AppleEvent
Let’s dive into the code! 🧵
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This should be mandatory reading for anyone in the JavaScript community. What a WILD story! I remember some of it as it was happening, but wow…
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My colleague just suggested I do:
useEffect(() => {
runSomeSideEffect();
}, [useGlobalValueFromContext()])
I’m in talks with HR to have Dan Abramov, in a police uniform 👮♂️, escort him off the premises.
A hook in a dependency array is grounds for immediate termination, right?
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My 6yo just blew my mind:
"Daddy, they should make a TV where you can push a button on it to make the remote beep so you can find the remote!"
🤯
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TIL:
@1Password
has a CLI! So I can securely publish to
@npmjs
with:
npm publish --otp $(op get totp npmjs)
#productivity
#devtwitter
Get CLI here:
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I wrote down some thoughts on Open Source Sustainability. It's a hard problem. We need to raise awareness.
I'd be much obliged if you'd read and share.
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Kinda proud of this TypeScript I wrote this morning.
The ubiquitous pluralize() function:
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I want a image resizing CDN SaaS where I can do:
<img src="cdnservice .com?url=
https://mydomain/huge-image.jpg&width=200"/>
The first request does the resizing and distribution to a CDN and returns the smaller image, and every subsequent request just gives the smaller image.
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♻️ A lot of
#JavaScript
devs know about reduce(), but very few people know about reuse() and recycle().
––
Array.prototype.reuse = function () { return this; }
Array.prototype.recycle = function () { return Array.from(this); }
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Moving from JS to
@typescript
feels like so much time is being wasted appeasing the vindictive TS gods. But I just went back to JS and spent HOURS debugging a thing that TS would've caught as I was coding it. 🤦♂️🤦♂️🤦♂️
#helicopterparenting
vs.
#freerangekids
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@tlakomy
forEach() and every() one of us, we must find() some sort() of map() so our team includes() some() slice() of moral values() and keys() to join() together to reduce() the desire to push() the indexOf() hatred, and shift() thoughts and minds.
––
Hey, boss, when can I get arrays?
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Today I'm launching a brand new form library. Introducing...
🏁 Final Form
Feedback, claps, ⭐s and RTs appreciated.
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.
.
.
No, not really. It’s a 6.6MB video. But you weren’t sure there for a second, were you?
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Just got first recruiter email asking for
@remix_run
skills.
How many years of experience should I claim to have? 🤣
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Hey backend nerds! I need some help.
You've got 100k requests/minute coming in, that need to return immediately, and you need to put a record in a database for every one. What architecture do you use?
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@dan_abramov
Open source form libraries, bro.
My yacht can barely float with all the gold bars.
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It’s TypeScript Question Time again!!
String literal types are awesome, but I need a way to expand (iterate over?) them to create a more complex type. Is this possible?
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@stats_feed
Isn’t Iceland where they have that “Before we bone, are you my cousin?” app?
Scandi-lous!
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@stats_feed
I know that’s not exactly how averages work, but there’s a huge pile of 14yos on that side of the fulcrum to keep the average so low.
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My brain did this to me when I couldn't sleep last night.
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When you make a change on prod when you thought you were on dev. 😅
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It's a shame TypeScript can't *require* a specific kind of React component as children of another. It would make composibility libraries so much more powerful.
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Oscillating between TypeScript and Javascript is so jarring.
Back in JS land, and I'm like, "WTF, you mean I could just pass ANYTHING to this function? Tell me what you expect of me!"
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I'm getting really 🤬 tired of every file I edit being called index.js. There *must* be a better way to organize javascript files.
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.
@remix_run
suffers from the same problem as
#React
: the keyword actively damages any search query on YouTube.
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Yesterday I had a bug in my code caused by A FREAKIN GLOBAL VARIABLE called `length` that’s just *always there* in
#JavaScript
.
Just when you think you’ve stepped in all the JS holes…
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I work on frontends and backends, but not weekends.
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The single greatest feedback that can be given to a tech talk speaker is: "You inspired me to go build something."
I always give this feedback as often as it's true, and appreciate it as the highest honor when I receive it. 🥰
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Did you know? In the UK, they spell it:
console.logue()
🇬🇧
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Wow. Copilot just generated this useEffect for me. It’s exactly the kind of mistake that a very junior React dev would make. It does “work”, but not the way the “coder” intended.
👏 always! 👏 include! 👏 dependency! 👏 array! 👏
Worst API default ever?
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Earlier today, my brain pattern-matched on a CSS color that was something like `
#00d0dd
`, and I realized that
@kentcdodds
needs this t-shirt. It turns out that `
#CD0DD5
` is a fuchsia tone.
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Hey, React nerds. My intuition is that memoizing JSX elements is wrong, and it's the *data* that should be memoized. What are the arguments in either direction?
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Ooh, I spotted a `do {} while ()` in the wild!
In my experience, it seems to be one of the most rarely used language constructs (in JS).
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After reading the “vs Next” blog post, running through the tutorial, and adapting it to one of my existing projects, I’m convinced that I’ll be using
@remix_run
for all of my future projects (and converting some existing ones).
I can’t wait to reap the benefits of skipping SSG!
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TypeScript Question Time!!
I want to determine a type based on a union of objects.
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I just booted up the TypeScript playground to ask you all a question, but then I figured it out, so instead I’m sharing the solution.
This feels like a really common pattern. Can you think of a more elegant solution?
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Hello, dear followers. I’m officially looking for a job starting in 2023.
DMs open. Act now before your competitor snatches up this talent! 😂
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@matteocollina
I'm so senior I never learned Docker.
Back in my day, we ssh'd into physical servers in the server room down the hall! 👴
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Last week I invented a clever way to manage state in React. I implemented it in a few PRs at work, and I even wrote a blog post, excited to share my discovery with the world.
Luckily I didn’t publish, because this week I discovered that the approach doesn’t work at all. 😅🤦♂️
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@kentcdodds
@remix_run
Doctor: “Kent, what you need now is REST.”
Kent: “I know! I do that with action functions in Remix!”
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Asked for a table at a French restaurant, and the waiter asked, “Sea view?”
I answered, “Sea view plaît!”
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💣 I've spent the past two weeks rewriting 🏁 React Final Form using hooks and rewriting *all* the tests to use 🐐 React Testing Library. It's been a great learning experience, and the library feels as robust as ever. Up to 100% coverage...hope to release sometime this week. ⏱
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I just learned the `-?` syntax in TypeScript.
It makes all the keys required (removes "optionality").
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Typescript would not have allowed you to make this mistake.
––
I'm gonna leave this here and link back to it a thousand times. So chances are seeing this from The Future.
#TypeScript
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@mattpocockuk
Without googling I don’t know what ANYTHING in package.json does.
Next interview question?
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Is there a single reason to ever use ES6 classes in JavaScript? Closures feel so much more lightweight and simpler.
If I never see `this` again, it will be too late.
#NotRhetorical
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@simon1972
@qikipedia
My [smartass] son says “the most boring person in the word does not exist, because that designation would make him interesting!” 🙄
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Alright dev nerds. Please argue for or against the following take:
––
There's no reason to use Map() in JS because objects are already doing hashing internally, and Map() provides no additional value over objects.
––
Go! 👇
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I recreated Dan’s famous React Lifecycle Method chart as an XState state chart.
––
Code:
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It sounds dumb, but I always feel like such a badass programmer when I use a `finally` block. What keyword boosts your ego?
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@terminaldotshop
@luizgrocco
I hope you started with Bigint so you won't have to migrate later when you revenue crosses $90 trillion.
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