/*
Gradebook from Names and Scores
I worked on this challenge [by myself, with:]
This challenge took me [#] hours.
You will work with the following two variables.  The first, students, holds the names of four students.
The second, scores, holds groups of test scores.  The relative positions of elements within the two
variables match (i.e., 'Joseph' is the first element in students; his scores are the first value in scores.).
Do not alter the students and scores code.
*/

var students = ["Joseph", "Susan", "William", "Elizabeth"]

var scores = [ [80, 70, 70, 100],
               [85, 80, 90, 90],
               [75, 70, 80, 75],
               [100, 90, 95, 85] ]






// __________________________________________
// Write your code below.

var gradebook = {}

for (var i = 0; i < scores.length; i++) {
  gradebook[students[i]] = {
      testScores: scores[i]
  }
}

gradebook.addScore = function(name, score) {
  gradebook[name].testScores.push(score);
}

gradebook.getAverage = function(name) {
  return average(gradebook[name].testScores)
}

var average = function(numbers) {
   var count = 0;
   var sum = 0;

   while (count < numbers.length) {
     sum += numbers[count];
     count++;
   }
  return sum / count;
}

/*
var average = function(numbers) {
  var sum = 0;

  for (var i = 0; i < numbers.length; i++) {
    sum += numbers[i];
  }
  return sum / numbers.length;
}
*/





// __________________________________________
// Refactored Solution








// __________________________________________
// Reflect









// __________________________________________
// Test Code:  Do not alter code below this line.


function assert(test, message, test_number) {
  if (!test) {
    console.log(test_number + "false");
    throw "ERROR: " + message;
  }
  console.log(test_number + "true");
  return true;
}



assert(
  (gradebook instanceof Object),
  "The value of gradebook should be an Object.\n",
  "1. "
)

assert(
  (gradebook["Elizabeth"] instanceof Object),
  "gradebook's Elizabeth property should be an object.",
  "2. "
)

assert(
  (gradebook.William.testScores === scores[2]),
  "William's testScores should equal the third element in scores.",
  "3. "
)

assert(
  (gradebook.addScore instanceof Function),
  "The value of gradebook's addScore property should be a Function.",
  "4. "
)

gradebook.addScore("Susan", 80)

assert(
  (gradebook.Susan.testScores.length === 5
   && gradebook.Susan.testScores[4] === 80),
  "Susan's testScores should have a new score of 80 added to the end.",
  "5. "
)

assert(
  (gradebook.getAverage instanceof Function),
  "The value of gradebook's getAverage property should be a Function.",
  "6. "
)

assert(
  (average instanceof Function),
  "The value of average should be a Function.\n",
  "7. "
)
assert(
  average([1, 2, 3]) === 2,
  "average should return the average of the elements in the array argument.\n",
  "8. "
)

assert(
  (gradebook.getAverage("Joseph") === 80),
  "gradebook's getAverage should return 80 if passed 'Joseph'.",
  "9. "
)
@@ -742,16 +742,18 @@
  below.%0A
+/*
 %0Avar gra
@@ -1225,19 +1225,393 @@
 ount;%0A%7D%0A
-%0A/*
+*/%0A%0A// __________________________________________%0A// Refactored Solution%0A%0Avar gradebook = %7B%7D%0A%0Afor (var i = 0; i %3C scores.length; i++) %7B%0A  gradebook%5Bstudents%5Bi%5D%5D = %7B%0A      testScores: scores%5Bi%5D%0A  %7D%0A%7D%0A%0Agradebook.addScore = function(name, score) %7B%0A  gradebook%5Bname%5D.testScores.push(score);%0A%7D%0A%0Agradebook.getAverage = function(name) %7B%0A  return average(gradebook%5Bname%5D.testScores)%0A%7D%0A
 %0Avar ave
@@ -1762,16 +1762,15 @@
 ;%0A%7D%0A
-*/%0A
 %0A%0A%0A%0A%0A
+%0A%0A
 // _
@@ -1821,91 +1821,621 @@
  Ref
-actored Solution%0A%0A%0A%0A%0A%0A%0A%0A%0A// __________________________________________%0A// Reflect%0A%0A
+lect%0A/*%0AWhat did you learn about adding functions to objects?  When adding functions to objects, I learned that you need to call the object, followed by a period and the name of the function.  This pulls in the object as well as naming the function.%0A%0AHow did you iterate over nested arrays in JavaScript?  To iterate over nested arrays, you would use multiple for loops.%0A%0AWere there any new methods you were able to incorporate? If so, what were they and how did they work?  We did not use any new methods, but did use the push and length method.  Another new thing I learned was adding properties to objects.%0A%0A*/
 %0A%0A%0A%0A

Complete gradebook exercise w/reflection