From dbbbb6c4c6a0da5448536997d88fdfd6309044d7 Mon Sep 17 00:00:00 2001
From: HenriqueSSan <hsstudentwork@gmail.com>
Date: Thu, 27 Oct 2022 20:51:29 -0300
Subject: [PATCH] feat(challenge-4): completed challenge

---
 04-fibonacci/index.js | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..ef73b48 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,16 @@
 export function fibonacci(value) {
   // implementar logica aqui
-  
-}
\ No newline at end of file
+  if (!value) return 0;
+
+  let n1 = 0,
+    n2 = 1,
+    nextTerm;
+
+  for (let i = 1; i <= value; i++) {
+    nextTerm = n1 + n2;
+    n1 = n2;
+    n2 = nextTerm;
+  }
+
+  return n1;
+}