From a9a02a05d42dfe2dd00b0c0d1881a5732e3af7b8 Mon Sep 17 00:00:00 2001
From: Leonardo Suarez <suarezgl@gmail.com>
Date: Thu, 21 Sep 2017 12:15:49 -0500
Subject: [PATCH] WIP: add new function check number is pair

---
 src/index.js         |  2 ++
 src/is-pair.js       | 14 ++++++++++++++
 test/is-pair.test.js | 16 ++++++++++++++++
 3 files changed, 32 insertions(+)
 create mode 100644 src/is-pair.js
 create mode 100644 test/is-pair.test.js

diff --git a/src/index.js b/src/index.js
index 9d36eb1d..545bf721 100644
--- a/src/index.js
+++ b/src/index.js
@@ -39,6 +39,7 @@ import isFunction from './is-function'
 import isOdd from './is-odd'
 import isNumeric from './is-numeric'
 import max from './max'
+import isPair from './is-pair'
 
 export {
   isOdd,
@@ -82,4 +83,5 @@ export {
   subtraction,
   isNumeric,
   max,
+  isPair,
 }
diff --git a/src/is-pair.js b/src/is-pair.js
new file mode 100644
index 00000000..689ad6fb
--- /dev/null
+++ b/src/is-pair.js
@@ -0,0 +1,14 @@
+export default isPair
+
+/**
+ * Original Source:
+ * https://stackoverflow.com/questions/5016313/how-to-determine-if-a-number-is-odd-in-javascript
+ *
+ * This method will check if a number is odd or not.
+ *
+ * @param {Number} value - value to check
+ * @return {Boolean} - True if n is pair, false if not
+ */
+function isPair(value) {
+  return value % 2 === 0
+}
diff --git a/test/is-pair.test.js b/test/is-pair.test.js
new file mode 100644
index 00000000..26ae8846
--- /dev/null
+++ b/test/is-pair.test.js
@@ -0,0 +1,16 @@
+import test from 'ava'
+import {isPair} from '../src'
+
+test('checks if number is pair and returns true', t => {
+  const n = 20
+  const expected = true
+  const actual = isPair(n)
+  t.deepEqual(actual, expected)
+})
+
+test('checks if number is pair and returns false', t => {
+  const n = 25
+  const expected = false
+  const actual = isPair(n)
+  t.deepEqual(actual, expected)
+})