Adding Binary Search

src/algorithms/search/binary-search/BinarySearch.js

@@ -0,0 +1,27 @@
+var myList = [1, 3, 5, 7, 9];
+
+function binarySearch(myList, itemToFind) {
+	var low = 0,
+        high = myList.length - 1,
+        mid,
+        guessed;
+
+	while(low <= high) {
+	    mid = Math.floor((low + high) / 2),
+	    guessed = myList[mid];
+
+	    if(guessed === itemToFind) {
+                console.log('Found item at index: ' + mid + ', value is ' + guessed);
+		    return;
+	    }
+	    if(itemToFind < guessed) {
+	        high = mid - 1;
+            } else {
+	        low = mid + 1;
+	    }
+        }
+
+	return null;
+}
+
+binarySearch(myList, 3);