number-fifteen/index.js

Natural number 15 (defined as 15 KB divided by 1 KB)

const aboutFifteenKilos = require("fifteen-kilos");

const aboutOneKilo = `
/*!
 * is-odd <https://github.com/jonschlinkert/is-odd>
 *
 * Copyright (c) 2015-2017, Jon Schlinkert.
 * Released under the MIT License.
 */

'use strict';

// Here we import the is number library
const isNumber = require('is-number');

module.exports = function isOdd(value) {
  // here we take the absolute value
  const n = Math.abs(value);
  if (!isNumber(n)) {
   // here we throw an error if the input is not a number
    throw new TypeError('expected a number');
  }
  // here expect intereger
  if (!Number.isInteger(n)) {
    throw new Error('expected an integer');
  }
  //here we exåect safe interger to be inputted as the input
  if (!Number.isSafeInteger(n)) {
    throw new Error('value exceeds maximum safe integer');
  }
  // now this is where the magic happens
  // every odd number x and only odd numbers x can be represented as x = 2k + 1 where k is some integer
  // this means that the reminder of x divided by two is one excactly when x is an odd number
  return (n % 2) === 1;
};
`;

module.exports = Math.round(aboutFifteenKilos.length / aboutOneKilo.length);