JS Fundamentals - Decorators

JS Fundamentals - Decorators

In this Hasty Treat, Scott and Wes talk about whether decorators are finally here, what the uses cases are for decorators, how to define a decorator, and what auto accessor is. Show Notes 00:25 Welcome 01:00 Are decorators finally here? TC39 proposal How this compares to other versions of decorators 06:47 What are use cases for decorators? 10:55 How do you define a decorator? 14:20 Auto Accessor on classes @loggged class C {} on fields class C { @logged x = 1; } Auto Accessor class C { accessor x = 1; } sugar for below class C { #x = 1; // # means private get x() { return this.#x; } set x(val) { this.#x = val; } } Can be decorated and decorator can return new get and set and init functions function logged(value, { kind, name }) { if (kind === "accessor") { let { get, set } = value; return { get() { console.log(`getting ${name}`); return get.call(this); }, set(val) { console.log(`setting ${name} to ${val}`); return set.call(this, val); }, init(initialValue) { console.log(`initializing ${name} with value ${initialValue}`); return initialValue; } }; } // ... } 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 Wes Bos on Bluesky Scott on Bluesky Syntax on Bluesky

Avsnitt(986)

978: Should A New Coder Use AI?

978: Should A New Coder Use AI?

Wes and Scott answer your questions about AI agents, learning to code with AI, pagination patterns, skilling up from outdated tech stacks, balancing side projects with family life, real-world hacking ...

11 Feb 1h 2min

977: We built a CSS Challenge platform

977: We built a CSS Challenge platform

Scott and Wes break down how they built SynHax, the real-time CSS Battle app powering the upcoming Mad CSS tournament. From SvelteKit and Zero to diffing algorithms, sync conflicts, and a last-minute ...

9 Feb 41min

976: Pi - The AI Harness That Powers OpenClaw W/ Armin Ronacher & Mario Zechner

976: Pi - The AI Harness That Powers OpenClaw W/ Armin Ronacher & Mario Zechner

Wes and Scott talk with Armin Ronacher and Mario Zechner about PI, a minimalist agent harness powering tools like OpenClaw. They unpack why Bash is “all you need,” the risks of agents, workflow adapta...

4 Feb 57min

975: What’s Missing From the Web Platform?

975: What’s Missing From the Web Platform?

Scott and Wes run through their wishlist for the web platform, digging into the UI primitives, DOM APIs, and browser features they wish existed (or didn’t suck). From better form controls and drag-and...

2 Feb 50min

974: Clawdbot (Moltbot), Agents and the Age of Personal Software

974: Clawdbot (Moltbot), Agents and the Age of Personal Software

Wes and Scott talk about building hyper-specific personal software with AI. They explore personal agents, home automation, JSON-as-a-database, and how LLMs unlock fast, custom apps that reduce frictio...

28 Jan 46min

973: The Web’s Next Form: MCP UI (with Kent C. Dodds)

973: The Web’s Next Form: MCP UI (with Kent C. Dodds)

Scott and Wes sit down with Kent C. Dodds to break down MCP, context engineering, and what it really takes to build effective AI-powered tools. They dig into practical examples, UI patterns, performan...

26 Jan 48min

972: These Things Make Your App Feel Like Crap on Mobile

972: These Things Make Your App Feel Like Crap on Mobile

Wes and Scott talk about why mobile web apps often feel “janky” compared to native—and how to fix it. They cover input zooming, accidental horizontal scroll, pointer/user-select quirks, frame rate con...

21 Jan 38min

971: Stackoverflow and Firefox are Dead?

971: Stackoverflow and Firefox are Dead?

Is Stack Overflow actually dying, and what does that mean in an AI-driven dev world? Scott and Wes break down the latest web dev news, from Firefox’s AI crossroads and Apple’s browser engine changes t...

19 Jan 46min

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