August 20, 2015 15:53 · Aug 20, 2015
diff --git a/gistfile1.txt b/gistfile1.txt
@@ -0,0 +1,35 @@
+function reduce(arr, fn, initial) {
+
+            //there's no more elements in the array, we return I get that
+            if (arr.length === 0) {
+                    return initial;
+            } // base case, does not recurse
+
+            // we are calling the actual function here with the first element in the array
+            //I don't get what initial is ??
+
+            initial = fn(initial, arr[0]);                      // sets init-OP-first result as new init
+
+            //calling slice chops the head and passes the rest to reduce again.
+            return reduce(arr.slice(1), fn, initial);
+    }
+
+    function sum(prev,next,index,arr) {
+            return prev + next;
+    }
+
+    function countWords(countMap, word)  {
+        countMap[word] = ++countMap[word] || 1 ;// increment or initialize to 1
+        console.log(countMap[word]);
+        return countMap;
+     }
+
+        var arr = [1,2,3,4];
+        //sum the numbers in the array
+        var total = reduce(arr,sum,0);
+        console.log("total="+total);
+
+        //count the number of words in a array
+        var arr1 =  [ 'quis', 'velit', 'voluptate', 'nostrud', 'aute', 'ea', 'nostrud', 'occaecat', 'tempor', 'eu', 'ut', 'occaecat', 'labore', 'occaecat', 'aliqua', 'culpa', 'incididunt', 'ex' ];
+        var tempArr = reduce(arr1,countWords,{});
+        console.log("tempArr="+JSON.stringify(tempArr) );