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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903: Fork Yeah! Microsoft open sourcing Copilot

Scott and Wes are joined by Erich Gamma, creator of VS Code, and Kai Maetzel, Copilot Lead, to share some big news about the future of VS Code and Copilot. They discuss what it means for developers, how AI is shaping the future of coding, and why staying open to the community is key. Show Notes 00:00 Welcome to Syntax! 01:00 The inception of VS Code. 02:49 VS Code adoption. 04:31 Brought to you by Sentry.io. 04:55 Syntax Denver Meetup! 05:19 The big announcement. 06:25 The current state of Copilot and VS Code. 08:31 The challenges with LLMs running outside of the codebase. 09:31 How to make a business case for AI. 10:47 The maturing of the AI landscape. 13:01 The limitations of extensions. 14:06 Open source vs closed source. 14:49 Copilot’s context is public. 19:23 Is context language-specific? 21:23 How does this affect paid Copilot features? 23:27 Secrets of Copilot’s server-side. 28:36 What will be open and what will not? 29:03 Is Copilot’s UI influenced by VS Code forks? 31:31 Maintaining VS Code identity in forks. 33:07 What does open-sourcing GitHub Copilot mean for Cursor and Windsurf? 38:42 Were you surprised to see VS Code forks? 40:03 Are other extensions able to tap into the AI offerings? 43:20 There’s work to be done. 44:13 The timeline. 45:39 Simulation Tests (S Tests). 48:07 How to test LLMs. 49:10 The future of software development with AI. 52:47 What’s your favorite model? 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 Touko 202557min

902: Fullstack Cloudflare with React and Vite (Redwood SDK)

Wes talks with Peter Pistorius about RedwoodSDK, a new React framework built natively for Cloudflare. They dive into real-time React, server components, zero-cost infrastructure, and why RedwoodSDK empowers developers to ship faster with fewer tradeoffs and more control. Show Notes 00:00 Welcome to Syntax! 00:52 What is RedwoodSDK? 04:49 Choosing openness over abstraction 08:46 More setup, more control 12:20 Why RedwoodSDK only runs on Cloudflare 14:25 What the database setup looks like 16:15 Durable Objects explained – Ep 879: Fullstack Cloudflare 18:14 Middleware and request flow 23:14 No built-in client-side router? 24:07 Integrating routers with defineApp 26:04 React Server Components and real-time updates 29:53 What happened to RedwoodJS? 31:14 Why do opinionated frameworks struggle to catch on? 34:35 The problem with Lambdas 36:16 Cloudflare’s JavaScript runtime compatibility 40:04 Brought to you by Sentry.io 41:44 The vision behind RedwoodSDK 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

14 Touko 202546min

901: JS News: New React & Svelte APIs, RSC Updates, Redwood and Storybook

Scott and Wes break down the latest in JavaScript news, including new async patterns in Svelte, React Server Component tooling with Parcel, and Redwood’s push into Cloudflare with its new SDK. They also cover what’s new in Storybook 9 Beta, from visual testing to a sleeker, lighter build. Show Notes 00:00 Welcome to Syntax! 02:50 Brought to you by Sentry.io. 03:37 Syntax Meetup! 04:09 React View Transitions. 08:58 addTransitionType. 11:18 Activity API. Offscreen Renamed to Activity. 14:22 Maintaining state in search queries. 16:29 Asynchronous Svelte. Playground. 19:04 Svelte Boundary. 25:13 Parcel RSC. 27:15 Redwood SDK. 30:55 Storybook 9 Beta. 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

12 Touko 202538min

900: 13 New CSS Features You Can Start Using Today

7 Touko 202557min

899: GSAP: Killer Web Animations With Cassie Evans

Scott and Wes sit down with Cassie Evans of GSAP to talk all things animation—from SVGs and scroll timelines to GSAP’s new rebrand and exciting features. They also dig into performance, plugins, and what makes GSAP such a powerful tool for web developers. Show Notes 00:00 Welcome to Syntax! 00:59 What is GSAP? Cassie Codes. 01:53 GSAP Rebranding. 04:44 GSAP under the hood. 05:29 The big announcement! 07:19 GSAP Showcase. 11:01 Brought to you by Sentry.io. 11:26 Why is GSAP easier for animations? GSAP Docs. 12:38 Animating with SVGs. 13:33 The love of SVG. 14:55 GSAP is performant. 16:06 Gotchas to watch out for. 18:12 Does GSAP work with canvas? 19:02 What GSAP projects are you most proud of? 20:30 Does it play nice with web frameworks? GSAP with React. 22:32 What are you excited about in CSS right now? Scroll Timeline. 24:27 Will any of these make their way into GSAP? 26:31 Timelines. 29:24 Building animations with timelines. 34:55 What are the best GSAP plugins? Split Text spanran-wrap. Physics 2D Plugin. 38:44 GSAP docs and philosophy. 39:50 Scrubbing animations by frame. 41:09 GSAP Video Exporter. 41:45 Animating with JavaScript. 45:19 JavaScript in unconventional applications. 47:56 Is there anything missing in web tech? 50:53 What about AI in GSAP? 52:40 Sick Picks + Shameless Plugs. Sick Picks Cassie: Eyesy Video Synthesis. Shameless Plugs Cassie: Smashing Conf. 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 Touko 202557min

898: Every Developer Needs a 3D Printer

Wes and Scott talk all things 3D printing—from fixing every day items to organizing tools, printing gadgets, and even teaching their kids entrepreneurship. Show Notes 00:00 Welcome to Syntax! 03:34 Brought to you by Sentry.io 05:03 Practical uses of 3D printing 07:34 Creating tools for organization Gridfinity 10:33 Improving and adapting everyday items Underware 14:34 The benefits of printing something vs buying it 15:32 Choosing the right 3D printer Bamboo Lab Elegoo Prusa Flashorge 25:26 Projects and ideas Multiboard 31:33 Filament types and their uses 40:05 Finding affordable filament Deal Forager 46:07 Where to find 3D models Maker World yeggi Printables Thangs Thingverse 48:08 Creating your own 3D models Fusion Shapr3D Onshape 53:00 Modifying existing 3D models 54:30 Coding in 3D printing Bento shards ManifoldCAD Hunyuan3D-2mv-Turbo Mecagent 01:01:25 Sick Picks + Shameless Plugs Sick Picks Scott: Alaska Bear Organic Silk Sleep Mask Wes: BLV - AMS Riser 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

30 Huhti 20251h 5min

897: Making Your App Feel Faster Than It Really Is

Scott and Wes break down the tricks and techniques for making your app feel blazing fast—even when it’s not. From optimistic UI to preload-on-hover, it’s all about perception, not just performance. Show Notes 00:00 Welcome to Syntax! 01:12 Brought to you by Sentry.io. 02:34 Mousedown or pointerdown events. 06:00 UI animations should be fast. 08:00 Animations should not block interaction. 08:20 Animations should be cancellable / reversible. 10:50 Optimistic UI. 12:37 Local Data. 13:36 Delay loading indicators. 14:40 Page loading indicators. 15:47 Preload on hover. 17:13 Calculate mouse trajectory. 18:51 Full page spinner on every change. 20:04 Pixelated spinners. 20:23 Skeleton loaders. 23:43 Photo frames. 25:52 Search on input instead of search on click. 26:46 Progress loaders than move in between steps. 27:31 Community submissions. 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

28 Huhti 202535min

896: Do I Still Need To Know JS/CSS/HTML with AI? × How To Sell An App × Is React Context Bad? × More

23 Huhti 202553min

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