Created
April 21, 2022 18:21
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TypeScript `CamelCase to UPPER_SNAKE_CASE` type
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| type CamelToUpperSnake<T extends string, P extends string = ''> = string extends Uncapitalize<T> ? string : | |
| T extends `${infer C0}${infer R}` ? | |
| CamelToUpperSnake<R, `${P}${C0 extends Uppercase<C0> ? '_' : ''}${Uppercase<C0>}`> : P; | |
| // works with both camelCase and CamelCase |
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