Sherex/Generic-snake_case-to-camelCase.ts

## README.md

      
    Raw
  

              README.md
            
          
NOTE: I don't have a very good understanding of the more advanced stuff in TS, but I managed to hack this togheter. There's probably a better way to this. :)

The SnakeToCamel generic is inspired by this split generic from typescriptlang.org.
type Split<S extends string, D extends string> =
    string extends S ? string[] :
    S extends '' ? [] :
    S extends `${infer T}${D}${infer U}` ? [T, ...Split<U, D>] : [S];
My changes and ObjectSnakeToCamel is from reading the TS docs.

  
## Generic-snake_case-to-camelCase.ts
type SnakeToCamel<S extends string> =
  S extends `${infer T}_${infer U}`
    ? `${T}${Capitalize<SnakeToCamel<U>>}`
    : S

type ObjectSnakeToCamel<Type> = {
  [Property in keyof Type as Property extends string ? SnakeToCamel<Property> : Property]: Type[Property]
}

const snakeObject = {
  id: 123,
  created_at: '123',
  deleted_at: false
}

const camelObject: ObjectSnakeToCamel<typeof snakeObject> = {
  id: 1,
  createdAt: '123',
  deletedAt: true
}
	type SnakeToCamel<S extends string> =
	S extends `${infer T}_${infer U}`
	? `${T}${Capitalize<SnakeToCamel<U>>}`
	: S

	type ObjectSnakeToCamel<Type> = {
	[Property in keyof Type as Property extends string ? SnakeToCamel<Property> : Property]: Type[Property]
	}

	const snakeObject = {
	id: 123,
	created_at: '123',
	deleted_at: false
	}

	const camelObject: ObjectSnakeToCamel<typeof snakeObject> = {
	id: 1,
	createdAt: '123',
	deletedAt: true
	}