askirmas / react-classnaming

export {}

it("`in string` vs `:string`", () => {

  type In = {[k in string]: boolean}

  type Colon = {[k: string]: boolean}

  function check1(_: {some: boolean}) {}

  function checkR<K extends string>(_: {[k in K]: boolean}) {}

  function checkC(_: {[k: string]: boolean}) {}

  const input1: In = {}, input2: Colon = {}

  //@ts-expect-error

  check1(input1)

  //@ts-expect-error

  check1(input2)

  checkR(input1)

  checkR(input2)

  checkC(input1)

  checkC(input2)

})