TypeScript Interview Questions - STUMP’d

Wes and Scott tackle TypeScript trivia, from combining string literal types to unraveling the mystery of d.ts files. Join them as they challenge each other on conditional types, interfaces, triple-slash directives, and TypeScript records.

Show Notes

• 00:00 Welcome to Syntax!
• TypeScript
• 01:05 Brought to you by Sentry.io.
• 03:20 How do you combine string literal types?
• Template Literal Types
• 06:34 What is a TypeScript Generic and why would you use one?
• TypeScript Generics
• 08:12 How do you write a conditional type?
• TypeScript Conditional Types
• 09:58 Generating TypeScript type from a function.
• Stricter Generators
• 14:09 How do d.ts files work?
• Module .d.ts
• 16:25 Name one difference between a type and an interface.
• Types vs Interfaces
• 19:15 What is a tripple-slash directive and why would you use them?
• Tripple-Slash Directives
• 20:52 What is a TypeScript record and what is it used for?
• Utility Types

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