TypeScript Fundamentals × Type Narrowing, Guards, and Predicates

TypeScript Fundamentals × Type Narrowing, Guards, and Predicates

In this episode of Syntax, Wes and Scott talk through some TypeScript Fundamentals around type narrowing, type guards, and type predicates. Show Notes 00:24 Welcome 01:40 Rocking predicates 02:54 What is a type in TypeScript? 04:11 Type Narrowing 08:18 Type Guard 16:19 Type Predicates Shameless Plugs Scott: LevelUp Tutorials Wes: Wes Bos Tutorials 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

Episoder(974)

910: If Statements in CSS?

910: If Statements in CSS?

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909: Handling and Throwing Errors

909: Handling and Throwing Errors

We break down how to properly throw, catch, and log errors in JavaScript and TypeScript. They cover client-side and server-side strategies, using tools like Sentry, and how to handle errors without ta...

9 Jun 202539min

908: Storybook Has Evolved w/ Jeppe Reinhold

908: Storybook Has Evolved w/ Jeppe Reinhold

Wes and Scott talk with Jeppe Reinhold about Storybook 9’s powerful new features—including drastically reduced bloat, seamless Vite integration, and next-level component testing. They dive into visual...

4 Jun 202550min

907: Wes’ New Site: Gatsby → React Server Components

907: Wes’ New Site: Gatsby → React Server Components

Wes rebuilt his personal site from Gatsby to a modern stack using Waku, React Server Components, and Cloudflare Workers — all while keeping the same design. Scott and Wes break down the pain points wi...

2 Jun 202544min

906: Tech Startups and Raising Money with Dan Levine (Vercel, Sentry, Mux…)

906: Tech Startups and Raising Money with Dan Levine (Vercel, Sentry, Mux…)

Wes and Scott talk with VC Dan Levine about how developers can raise venture capital, what investors look for in early-stage startups, the realities of bootstrapping vs. fundraising, and why great ide...

28 Mai 202556min

905: You Should Learn Nuxt!

905: You Should Learn Nuxt!

CJ steps in for Scott and joins Wes to share his experience working with Nuxt, from routing and data fetching to the pros and cons of the framework. They break down the Nuxt ecosystem, directory struc...

26 Mai 202527min

904: React vs Svelte × Windsurf Worth $3B × Typescript as Const × Layout Shift Tricks × More

904: React vs Svelte × Windsurf Worth $3B × Typescript as Const × Layout Shift Tricks × More

In this potluck episode of Syntax, Wes and CJ answer your questions about OpenAI’s $3B Windsurf acquisition, the evolving role of UI in an AI-driven world, why good design still matters, React vs. Sve...

21 Mai 202551min

903: Fork Yeah! Microsoft open sourcing Copilot

903: Fork Yeah! Microsoft open sourcing Copilot

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19 Mai 202557min

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