Add files via upload

10_fibonacci/fibonacci.js

@@ -1,6 +1,31 @@
-const fibonacci = function() {
+const fibonacci = function(num) {
+
+    num = parseInt(num, 10);
+
+    if (num < 0) {
+        return "OOPS";
+    }
+
+    let first = 0;
+    let second = 1;
+    let next = 0;
+    let array = [1];
+
+    for (let i = 1; i < num; i++) {
+        next = first + second;
+        first = next;
+        array.push(next);
+
+        next = first + second;
+        second = next;
+        array.push(next);
+    }
+
+    return array[num -1];
 
 };
 
+// 1, 1, 2, 3, 5, 8, 13, 21
+
 // Do not edit below this line
 module.exports = fibonacci;

10_fibonacci/fibonacci.spec.js

@@ -4,28 +4,28 @@ describe('fibonacci', () => {
   test('4th fibonacci number is 3', () => {
     expect(fibonacci(4)).toBe(3);
   });
-  test.skip('6th fibonacci number is 8', () => {
+  test('6th fibonacci number is 8', () => {
     expect(fibonacci(6)).toBe(8);
   });
-  test.skip('10th fibonacci number is 55', () => {
+  test('10th fibonacci number is 55', () => {
     expect(fibonacci(10)).toBe(55);
   });
-  test.skip('15th fibonacci number is 610', () => {
+  test('15th fibonacci number is 610', () => {
     expect(fibonacci(15)).toBe(610);
   });
-  test.skip('25th fibonacci number is 75025', () => {
+  test('25th fibonacci number is 75025', () => {
     expect(fibonacci(25)).toBe(75025);
   });
-  test.skip('doesn\'t accept negatives', () => {
+  test('doesn\'t accept negatives', () => {
     expect(fibonacci(-25)).toBe("OOPS");
   });
-  test.skip('DOES accept strings', () => {
+  test('DOES accept strings', () => {
     expect(fibonacci("1")).toBe(1);
   });
-  test.skip('DOES accept strings', () => {
+  test('DOES accept strings', () => {
     expect(fibonacci("2")).toBe(1);
   });
-  test.skip('DOES accept strings', () => {
+  test('DOES accept strings', () => {
     expect(fibonacci("8")).toBe(21);
   });
 });