TL;DR

Learn TypeScript enums and const assertions to create named, type-safe constants. Replace magic strings and numbers in your code.

Key concepts

  • TypeScript enums
  • const assertions TypeScript
  • TypeScript constants
  • enum vs const assertion

Next lesson

Type Narrowing

Learn TypeScript type narrowing with typeof, instanceof, in operator, discriminated unions, and user-defined type guards.

25 min

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