text: const calculator = (() => {
    const add = (x, y) => x + y;
    const subtract = (x, y) => x - y;
    const divide = (x, y) => x / y;
    const multiply = (x, y) => x * y;
    return {
      add,
      subtract,
      divide,
      multiply,
    };
  })();
  
  export default calculator;