wiki/content/20201123103333-capitalize.md

date	id	title
2020-11-23	6c64608e-24e8-4f8a-8f22-6b9bba4a3f0c	Capitalize

Description

Transforms the first string character to uppercase for string literal types.

Syntax

type CapitalizedGreeting<T extends string> = `${Capitalize<T>}`

type HELLO = CapitalizedGreeting<"hello">;
// same as
//   type HELLO = "Hello";