Syntax - Tasty Web Development Treats2 Kesä 2021

React + TypeScript

In this episode of Syntax, Scott and Wes talk about using React with Typescript — how to set it up, components, state, props, passing data, custom hooks, and more! Freshbooks - Sponsor Get a 30 day free trial of Freshbooks at freshbooks.com/syntax and put SYNTAX in the “How did you hear about us?” section. Sentry - Sponsor If you want to know what’s happening with your code, track errors and monitor performance with Sentry. Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and optimize their code health. Cut your time on error resolution from hours to minutes. It works with any language and integrates with dozens of other services. Syntax listeners new to Sentry can get two months for free by visiting Sentry.io and using the coupon code TASTYTREAT during sign up. Linode - Sponsor Whether you’re working on a personal project or managing enterprise infrastructure, you deserve simple, affordable, and accessible cloud computing solutions that allow you to take your project to the next level. Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and easier. Get started on Linode today with a $100 in free credit for listeners of Syntax. You can find all the details at linode.com/syntax. Linode has 11 global data centers and provides 24/7/365 human support with no tiers or hand-offs regardless of your plan size. In addition to shared and dedicated compute instances, you can use your $100 in credit on S3-compatible object storage, Managed Kubernetes, and more. Visit linode.com/syntax and click on the “Create Free Account” button to get started. Show Notes 04:55 - Components Strategies Example: type Props = { value: string; } const App = (props: Props) => Return type? JSX.Element FC or FunctionComponent It’s discouraged for this reason: It means that all components accept children, even if they're not supposed to It could be useful for a return type 12:13 - Props Default props: const defaultJoke: JokeProps = { joke: 'LOL JOE', id: 'YEAH', status: 200, }; function JokeItem({ joke = defaultJoke }: JokeProps): JSX.Element { return ( {joke.joke} = {joke.id} ); } Because props are always destructured, you often have to make a new type for your props. You can’t just type each argument by itself. 18:38 - State Just like Generics, State can be inferred If your type is simple and you’re using useState, it just works: const [user, setUser] = useState(null); 22:27 - useEffect Nothing special required Good use of void: If you want to use a Promise function but not worry about await or .then(), you can pop a void in front of it: useEffect(() => { console.log('Mounted'); // getJoke().then(console.log).catch(console.error); void getJoke(); }, [getJoke]); 26:09 - Refs Very similar to state however some interesting things with null: const ref1 = useRef(null!); “Instantiating the ref with a current value of null but lying to TypeScript that it’s not null.” 29:33 - Custom Hooks This is a great use case for Tuples 31:00 - Context This is probably the most complex thing in this list First define the types Use generic to pass in types OR null This can also be non-null if you have default values in createContext: const AppCtx = React.createContext(null); 35:21 - Events The React events system is better than Vanilla JS Can handle them inline and have it inferred: onClick={e ⇒ yeah(e.target)} const onSetType = (e: React.ChangeEvent) => setType(e.target.value) React has a bunch of events built in — many of them take a Generic argument so you can specify the type of element that triggered it. Handy for native API methods like play and pause. 39:27 - ForwardRef Again use of to pass in forwarded ref type as param 1, Props types as param 2: type Props = { children: React.ReactNode; type: "submit" | "button" }; export type Ref = HTMLButtonElement; export const FancyButton = React.forwardRef((props, ref) => ( {props.children} )); 41:30 - ESLint Typescript-react is good Extend your own Most JS rules apply to TS 46:20 - React as Global React 17 Also add JSX: True to eslint globals for typing things like JSX.Element global.d.ts import * as react from "react" import * as react_dom from "react-dom" declare global { type React = typeof react type ReactDOM = typeof react_dom } 48:08 - TSConfig jsx: "react" React emit .js files with JSX changed Preserve .jsx file output React-native → .js files with jsx not changed 53:05 - Frameworks? Next.js makes this a TREAT Gatsby just use .tsx extensions https://www.gatsbyjs.com/plugins/gatsby-plugin-ts-config/ Links https://github.com/typescript-cheatsheets/react Tanner Linsley https://github.com/wesbos/eslint-config-wesbos Deno Architect https://fav.farm/ Snowpack Vite Parcel 2 Foam ××× SIIIIICK ××× PIIIICKS ××× Scott: Obsidian Wes: Folding Allen Keys Shameless Plugs Scott: 1: Level Up Tutorials Pro Spring Sale - 50% off annual subscriptions! 2: SvelteKit Course Wes: Beginner Javascript Course - Use the coupon code ‘Syntax’ for $10 off! Tweet us your tasty treats! Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

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888: You Need a Monorepo × Client Only React × TanStack + More

26 Maalis 202552min

887: Vibe Coding Is a Problem

Is Vibe Coding the future of software development or just a fun way to experiment? Scott and Wes talk about coding with AI, the risks of ignoring the details, and the cool (and sometimes cursed) projects they’ve Vibe Coded. Show Notes 00:00 Welcome to Syntax! 00:31 “Personal Software”. 01:30 What exactly is Vibe Coding. 02:46 The challenges of coding with AI. Levelsio Airplane Game. 04:49 Brought to you by Sentry.io. 05:39 Vibe coding quality concerns. 07:25 Vibe Coding as a learning tool. 10:11 Things we’ve Vibe Coded. Scott’s Piano UI on X. Episode 876: MIDI & Music In the Browser. Wes’ Roomba on X. Wes’ Roomba on YouTube. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

24 Maalis 202516min

886: AWS and IAC for Dummies with SST

Wes and Scott talk about Infrastructure as Code and how SST makes deploying to AWS easier than ever. They dive into SST’s features, developer experience, and how it simplifies managing services like databases, email, and more. Plus, insights on Cloudflare integration, auto-scaling, and real-world use cases. Show Notes 00:00 Welcome to Syntax! Supper Club × Next.js on AWS + Serverless with Dax Raad 02:37 Brought to you by Sentry.io 04:52 Intro to SST config SST AWS 05:40 Overview of Scott’s SST config file 12:33 Exploring SST’s endless capabilities SST’s docs Cloudflare 15:42 The SST developer experience Infrastructure for TS Devs: Kubernetes, WASM and Containers with David Flanagan Supper Club × Flightcontrol with Brandon Bayer 19:05 SST console and GUI overview 22:13 Resource management and pricing 24:52 Secrets management 27:38 Tunneling and security https://sst.dev/docs/live 30:52 Simplifying DNS 35:18 Sick Picks + Shameless Plugs Sick Picks Scott: Aquaphor Healing Ointment Wes: Magnetic Picture Hanger Frame Shameless Plugs Syntax YouTube Channel Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

19 Maalis 202539min

885: CSS Fonts Fallbacks, Variable and Trimming

Scott and Wes dig into the wild world of CSS fonts—covering fallbacks, variable fonts, and new tricks like text-box-trim. They also break down font-display, font kits, and how to avoid layout shifts when loading custom type. Show Notes 00:00 Welcome to Syntax! 01:06 Brought to you by Sentry.io. Damnit Sans. 02:53 @font-face. 03:27 Font Display. 07:40 Avoiding layout shift. Fallbacks. 10:45 Variable fonts. Fontaine. font-kit Wakamai Fondue. Syntax Ep. 782. Font Variation Settings. 16:23 Variable font sizing. 17:46 v-fonts. 19:10 text-box-trim & text-box-edge. text-box-trim examples. 21:28 Browser support. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

17 Maalis 202523min

884: Typescript Just Got 10x Faster

Wes and Scott talk with Anders Hejlsberg and Daniel Rosenwasser about TypeScript’s leap to native code. They discuss the challenges, trade-offs, and the decision to port TypeScript to Go, unlocking faster compilation, better concurrency, and new possibilities for AI-assisted development. Show Notes 00:00 Welcome to Syntax! 00:38 TypeScript compiler goes native 05:24 Challenges in rebuilding TypeScript 08:49 How long has this been in development? 10:32 What does porting TypeScript to native entail? 16:36 Why choose Go? 26:48 The porting process 35:02 Brought to you by Sentry.io 35:27 Type checking and parallel compilation 42:36 Fixing TypeScript’s performance bottlenecks 49:09 Large TypeScript codebases 54:11 What’s the timeline for the new compiler? 58:39 Optimization and AI 01:00:32 New features? 01:04:15 Sick Picks + Shameless Plugs Sick Picks Daniel: pprof-it Anders: USB Hand Warmers Shameless Plugs TypeScript Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

11 Maalis 20251h 8min

883: Web Vitals Explained

What are Web Vitals, and why should you care? Scott and Wes break down metrics like LCP, FCP, CLS, and INP, explaining what they measure, how they impact your site’s performance, and how to track them yourself. Show Notes 00:00 Welcome to Syntax! 03:26 What each web vital means. Web Vitals Playground. 03:38 LCP - Largest Contentful Paint. 05:04 FCP - First Contentful Paint. 06:07 CLS - Cumulative Layout Shift. 10:58 INP - Interaction to Next Paint. 13:43 Measuring the impact. 14:22 TTFB - Time to First Byte 15:27 How to track this on your own. 17:42 Checking the performance of Syntax.fm. 21:07 Brought to you by Sentry.io. Sentry Web Vitals. 21:49 Checking the performance of Wes’ site. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

10 Maalis 202522min

882: Aaron Francis is putting PHP in Your JS Files

Wes and Scott talk with Aaron Francis about Fusion for Laravel, a new way to seamlessly integrate PHP into JavaScript. They discuss how Fusion expands on Inertia, its potential for React support, and how it simplifies full-stack development. Show Notes 00:00 Welcome to Syntax! 01:22 Aaron’s background in PHP Yii Laravel 02:27 What is Fusion for Laravel? Fusion for Laravel 09:14 How Fusion works 13:57 The benefits of Laravel 19:18 Invalidation and caching 25:20 Brought to you by Sentry.io 25:32 Optimistic UI 28:28 React integration? 31:44 Fusion’s original name (and the naming process) 33:30 Laravel’s approach to frontend frameworks Livewire 37:32 Databases and scaling 41:27 Postgres extensibility and hosting options Crunchy Data Xata 47:44 The vision for Fusion 48:31 Sick Picks + Shameless Plugs Sick Picks Aaron: Better Display CLI Shameless Plugs Aaron: High Performance SQLite Mastering Postgres Screencasting.com Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

5 Maalis 202554min

881: What Happened to Remix. Worth Using Axios? Client Only Next.js?

Scott and Wes answer your listener questions! They debate Axios vs. Fetch, discuss whether Next.js is overkill without a backend, talk htmx and Alpine, dive into tech career transitions, and tackle everything from podcast ads to password hashing myths. Show Notes 00:00 Welcome to Syntax! 00:55 Scott’s health update. 04:11 Submit your questions. 04:26 Is Axios still worth using over Fetch? shiki. xior. ky. 10:17 Does Alpine.js solve HTMX’s client-side limitations? Syntax Ep. 868: The State of JavaScript. Server Driven Web Apps With HTMX. Syntax Ep. 568: Supper Club × Caleb Porzio. Alpine.js. Inertia.js. 16:47 How should I host my database for a local-first app? Neon Tech 22:50 Brought to you by Sentry.io. 24:14 Should I use Next.js if I want a separate backend? Create Vite Extra. 32:08 Are ad networks like BuySellAds worth it for podcasts? 36:36 Can I transition from airline pilot to senior software developer? 41:23 Is Base64 encoding a valid alternative to password hashing? 45:43 How do I use unexported functions from a third-party package? 48:09 How do you stay on top of package and browser updates? Syntax Ep. 425: Updating Project Dependencies. npm-check-update. 52:38 Why are Chrome and Firefox’s mobile presets outdated? 57:20 Should I give feedback on bad UX/UI designs from agencies? 01:01:53 Sick Picks + Shameless Plugs. Sick Picks Scott: Nothing Ear (a). Wes: SmallRig Phone Cage. Shameless Plugs Wes: Syntax on YouTube. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

3 Maalis 20251h 7min

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