Added palindrome to coding challenges

Author: ratracegrad

palindrome/package.json

@@ -0,0 +1,10 @@
+{
+  "name": "CodePrep.io_coding_challenges",
+  "author": "Jennifer Bland",
+  "url": "http://www.codeprep.io",
+  "version": "1.0.0",
+  "description": "CodePrep.io presents coding challenges you might face when interviewing for a Full-Stack Developer position",
+  "scripts": {
+    "test": "node ../node_modules/mocha/bin/mocha ./*.test.js"
+  }
+}

palindrome/palindrome.js

@@ -0,0 +1,27 @@
+/***************************************************************
+ *                                                             *
+ *                       CodePrep.io                           *
+ *                                                             *
+ *   Function:  palindrome(str)                                *
+ *   Input:    1 string parameter                              *
+ *   Output:   boolean                                         *
+ *                                                             *
+ *   Output expectations:                                      *
+ *   var myTest = palindrome('civic');                         *
+ *   console.log(myTest);  // true                             *
+ *                                                             *
+ *   A palindrome is a word, phrase or number which            *
+ *   reads the same backward or forward.                       *
+ *                                                             *
+ *   Write the code for the palindrome function that           *
+ *   accepts a string input and then returns true or           *
+ *   false if that string is a palindrome. Allowances          *
+ *   must be made for capital letters, punctuation and         *
+ *   word dividers.                                            *
+ *                                                             *
+ **************************************************************/
+
+var palindrome = function(str) {
+    /* YOUR CODE GOES HERE */
+
+};

palindrome/palindrome.test.js

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+var should = require('should');
+var vm = require('vm');
+var fs = require('fs');
+var filename = __filename.replace(/\.test\.js$/, '.js');
+vm.runInThisContext(fs.readFileSync(filename), filename);
+
+
+describe('palindrome', function() {
+    it('should exist', function(){
+        should.exist(palindrome);
+    });
+
+    it('should be a function', function() {
+        palindrome.should.be.a.Function;
+    });
+
+    it('should return a boolean', function() {
+        var result = palindrome('hello');
+        should.exist(result);
+        result.should.be.an.instanceof(Boolean);
+    });
+
+    it('should return false if no input provided', function() {
+        var result = palindrome();
+        result.should.be.eql(false);
+    });
+
+    it('should return true for a single character', function(){
+        var result = palindrome('a');
+        result.should.be.eql(true);
+    });
+
+    it('should remove spaces and punctuation to create palindrome', function(){
+        var result = palindrome('able was I! ere I saw elba');
+        result.should.be.eql(true);
+    });
+
+    it('should work with input string of numbers', function() {
+        var result = palindrome('707');
+        result.should.be.eql(true);
+    });
+
+    it('should not let case of characters impact creation of palindrome', function(){
+        var result = palindrome('RaceCAr');
+        result.should.be.eql(true);
+    });
+
+});