`isMultipleOf` Promise Function which resolves if input is multiple of number or rejects it

isMultipleOf.js

function isMultipleOf(input, number) {
  if (input % number === 0) {
    return Promise.resolve(input);
  }
  
  return Promise.reject(new Error(`not a multiple ${input}`));
}

isMultipleOf(20, 10).then(console.log, console.error)

// Factory Style

// returns a multpleOf funtion for the number provided
function multipleOfFactory(number) {
  return function (input) {
    return isMultipleOf(input, number);
  }
}

var isMultipleOfFive = multipleOfFactory(5);

isMultipleOfFive(6).then(console.log, console.error);

// number at index is multiple of index+1
var myArray = [1, 18, 14 , 65, 43, 60]; // check if the number at index is multiple of index+1 e.g result [true true, false, false, false, true ] 
// Result [true true, false, false, false, true ] 
const myArrayPromise = myArray.map((value, index) => {
  const i = index + 1;

  return isMultipleOf(value, i).then(() => true, () => false).catch((x) => );;
});


Promise.all(myArrayPromise).then((result) => {
    console.log(result)
});

Promise.all(myArrayPromise).then((result) => {
    console.log(result)
});