Module 2 #11

011_averageIntegers.js

/*
Use the skeleton provided to write a working implementation.

Notes: 
* Do not leave any functions in the skeleton unused.
* Test that your implementation works.

Specifically -- your code reviewer should be able to just press the [Run] button and see convincing evidence that your code works, because of:
a) the categorical reasoning displayed by your tests
b) the line(s) of output in the console log saying "passed" coming from those tests

*/

// Skeleton
var sums = 0;
var numbers = [1, 2, 3, 4];

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


function average(numbers) {
  var avg = sums / numbers.length;
  return avg;
}


function assertEqual(actual, expected, testName){
  if(actual === expected){
    console.log("passed");
  } else {
    console.log("FAILED [" + testName + "] Expected " + expected + ", but got " + actual);
  }
}


assertEqual(sum(numbers), 10, "sum of digits in an array");
assertEqual(average(numbers), 2.5, "average of digits in an array");