Tim Joo Javascript basics challenge

average.js

@@ -0,0 +1,77 @@
+pry = require('pryjs')
+
+var array = [ 1 ,3 ,4 ,5, 6]
+
+function total(data) {
+  var total = 0;
+  for (var i = 0; i < data.length ; i++){
+    total += data[i];
+  }
+  return total
+}
+
+function mean(data){
+  var sum = 0 ;
+  for (var i = 0; i < data.length ; i++){
+    sum += data[i];
+  }
+  return (sum / data.length)
+}
+
+//////////
+
+function reOrganize(array, index, newIndex) {
+  var temp = array[index];
+  array[index] = array[newIndex];
+  array[newIndex] = temp;
+}
+
+function bubbleSort(array){
+  for( var index = 0 ; index < array.length; index++){
+    for(var newIndex = 1; newIndex < array.length; newIndex++){
+      if(array[newIndex-1] > array[newIndex]){
+        reOrganize(array, newIndex-1, newIndex);
+      }
+    }
+  }
+  return array
+}
+
+
+function median(data){
+   median = 0;
+   length = data.length;
+    data.sort();
+    if (length % 2 === 0) {
+      median = (data[length / 2 - 1] + data[length / 2]) / 2;
+    } else {
+      median = data[(length - 1) / 2];
+    }
+  return median;
+}
+
+function mode(data) {
+  var counter = {};
+  var check   = 0;
+  var result;
+  for (var i = 0; i < data.length; i++) {
+    var number = data[i];
+
+    if (counter[number] === undefined){
+      counter[number] = 1;
+    } else {
+      counter[number] = counter[number] + 1;
+    }
+    if(counter[number] > check){
+      check = counter[number];
+      result = data[i];
+    }
+  }
+  //ask lovisa about this if block 
+  return result;
+}
+
+
+
+
+module.exports = {total : total, mean: mean, median: median, mode: mode}

factorial.js

@@ -0,0 +1,9 @@
+function factorial(num){
+  if(num == 0)
+    return 1;
+  else {
+    return (num * factorial(num-1));
+  }
+};
+
+module.exports = {factorial: factorial}

longest.js

@@ -0,0 +1,18 @@
+var pry = require('pryjs');
+
+var animals = ["manbearpig", "manimal", "donkey", "tiger"]
+
+
+
+function longest(data){
+  var tempLongest = undefined
+  data.forEach(string => {
+    if (tempLongest === undefined || string.length > tempLongest.length){
+      tempLongest = string;
+    }
+  })
+  return tempLongest;
+  }
+
+
+module.exports = {longest: longest}