added solution for fibonacci checker

Kyle Maune · Kyle Maune · commit f6bca0b37fbd · 2014-07-15T17:08:24.000-07:00
diff --git a/Medium Difficulty/fibonacciChecker.js b/Medium Difficulty/fibonacciChecker.js
@@ -0,0 +1,19 @@
+// coderbyte solution for fibonacci checker
+// splashinn
+
+function FibonacciChecker(num) {
+  if (num == 0) {
+    return 'yes';
+  }
+  var lastNumber = 0;
+  var currentNumber = 1;
+  while (currentNumber <= num) {
+    var nextNumber = lastNumber + currentNumber;
+    if (nextNumber == num) {
+      return 'yes';
+    }
+    lastNumber = currentNumber;
+    currentNumber = nextNumber;
+  }
+  return 'no';
+}
