This repo is a fork of ts-case-convert, which no longer seems to be maintained. All credit for the work should go to its author @RossWilliams.

typescript-case-convert converts object keys between camelCase, snake_case, and PascalCase while preserving Typescript type information, code completion, and type validation. See tests for detailed conversion tests.

Usage

const camel = objectToCamel({
  hello_world: 'helloWorld',
  a_number: 5,
  an_array: [1, 2, 4],
  null_object: null,
  undef_object: undefined,
  an_array_of_objects: [{ a_b: 'ab', a_c: 'ac' }],
  an_object: {
    a_1: 'a1',
    a_2: 'a2',
  },
});

type CheckCamel = typeof camel.anArrayOfObjects[0]['aB']; // -> 'string'
const ab: CheckCamel = camel.anArrayOfObjects[0]['aB']; // -> valid
console.log(camel.anArrayOfObjects.aB); // -> 'ab'

const snake = objectToSnake({
  helloWorld: 'helloWorld',
  aNumber: 5,
  anArray: [1, 2, 4],
  nullObject: null,
  undefObject: undefined,
  anArrayOfObjects: [{ aB: 'ab', aC: 'ac' }],
  anObject: {
    A1: 'a_1',
    A2: 'a_2',
  },
});

type CheckSnake = typeof snake.an_array_of_objects[0]['a_b']; // -> 'string'
const ab: CheckSnake = snake.an_array_of_objects[0]['a_b']; // -> valid
console.log(snake.an_array_of_objects.a_b); // -> 'ab'

Run tests

yarn run test

Documentation

See tests.