TheSumOfARange created by Luke_Rogerson - https://repl.it/@Luke_Rogerson/TheSumOfARange

TheSumOfARange.js

// Eloquent Javascript, Chapter 4, Coding Challenge #1
/* Write a range function that takes two arguments, start and end, and returns an array containing all the numbers from start up to (and including) end. */

function range (start, end, step) {
  
  let rangeArray = [];
  
  for (let i = start; i <= end; i += step) {
    rangeArray.push(i);
    
  }
  
  return rangeArray;
  
}

function sum (arrayOfNumbers) {
  
  let total = 0;
  
  for (let j = 0; j <= arrayOfNumbers.length; j++) {
    total += j;
    
  }
  return (total);
  
}

range(1, 10, 3);