Switched out palindrome for reverse

Author: gildedgardenia

unit-testing/chapter-examples/reverse-example/package.json renamed to unit-testing/chapter-examples/palindrome-example/package.json

@@ -2,7 +2,7 @@
    "name": "unit-testing",
    "version": "1.0.0",
    "description": "",
-   "main": "reverse.js",
+   "main": "palindrome.js",
    "scripts": {
      "test": "jest"
    },

unit-testing/chapter-examples/palindrome-example/palindrome.js

@@ -0,0 +1,9 @@
+function reverse(str) {
+   return str.split('').reverse().join('');
+ }
+ 
+ function isPalindrome(str) {
+   return reverse(str) === str;
+ }
+ 
+ module.exports = isPalindrome;