adding middle character

Author: abranhe

docs/middle-character.md

@@ -0,0 +1,43 @@
+# middle-character
+
+You are going to be given a word. Your job is to return the middle character of the word. If the word's length is odd, return the middle character. If the word's length is even, return the middle 2 characters.
+
+### Examples:
+
+```js
+Kata.getMiddle("test")
+// => return "es"
+
+Kata.getMiddle("testing")
+// => return "t"
+
+Kata.getMiddle("middle")
+// => return "dd"
+
+Kata.getMiddle("A")
+// => return "A"
+```
+
+
+## Install
+
+```
+$ npm install @abranhe/codewars
+```
+
+## Usage
+
+```js
+const codewars = require('@abranhe/codewars');
+
+codewars.getMiddle('test');
+//=> 'es'
+```
+
+## API
+
+### codewars.getMiddle(input)
+
+#### input
+
+Type: `string`

readme.md

@@ -29,6 +29,7 @@ codewars.maskify('454233223424324');
 - [codewars.spinWords()](docs/spin-words.md)
 - [codewars.squareDigit()](docs/square-every-digit.md)
 - [codewars.complementaryDNA()](docs/complementary-dna.md)
+- [codewars.getMiddle()](docs/middle-character.md)
 
 ## License
 

src/index.js

@@ -4,10 +4,12 @@ const maskify = require('./credit-card-mask');
 const spinWords = require('./spin-words');
 const squareDigits = require('./square-every-digit');
 const complementaryDNA = require('./complementary-dna');
+const getMiddle = require('./middle-character');
 
 module.exports = {
 	maskify,
 	spinWords,
 	squareDigits,
-	complementaryDNA
+	complementaryDNA,
+	getMiddle
 };

src/middle-character.js

@@ -0,0 +1,3 @@
+module.exports = s => {
+	return s.slice((s.length - 1) / 2, (s.length / 2) + 1);
+};

tests/middle-character.test.js

@@ -0,0 +1,9 @@
+import test from 'ava';
+import {getMiddle} from '../src';
+
+test('Check middle-character.js', t => {
+	t.is(getMiddle('test'), 'es');
+	t.is(getMiddle('testing'), 't');
+	t.is(getMiddle('middle'), 'dd');
+	t.is(getMiddle('A'), 'A');
+});