feat(second): add second function (#242)

* feat(second): add second function

* feat(second): resolve the issues

Author: yeashinr

src/index.js

@@ -91,6 +91,7 @@ import validateEmail from './validateEmail'
 import removeElementByIndex from './removeElementByIndex'
 import clone from './clone'
 import arrMultiply from './array-multiplier'
+import second from './second'
 
 export {
   reverseArrayInPlace,
@@ -186,4 +187,5 @@ export {
   removeElementByIndex,
   clone,
   arrMultiply,
+  second,
 }

src/second.js

@@ -0,0 +1,11 @@
+export default second
+/*
+*source :https://stackoverflow.com/questions/44531677
+* function return second element of the array.
+* @param {Number} array - any
+* return boolean value
+*/
+
+function second(array) {
+  return array[1]
+}

test/second.test.js

@@ -0,0 +1,9 @@
+import test from 'ava'
+import {second} from '../src'
+
+test('Return second elements of the array', t => {
+  const array = [1, 2, 3, -1]
+  const expected = array[1]
+  const actual = second(array)
+  t.deepEqual(actual, expected)
+})