Added Capitalize to coding challenges.

Author: ratracegrad

capitalize/capitalize.js

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+/***************************************************************
+ *                                                             *
+ *                       CodePrep.io                           *
+ *                                                             *
+ *   Function:  capitalize(str)                                *
+ *   Input:    1 string parameter                              *
+ *   Output:   string                                          *
+ *                                                             *
+ *   Output expectations:                                      *
+ *   var myTest = capitalize('hello world');                   *
+ *   console.log(myTest);                                      *
+ *      // Hello World                                         *
+ *                                                             *
+ *   Write the code for the capitalize function that           *
+ *   capitalizes the first letter of each word in the          *
+ *   string. If there are multiple words they will be          *
+ *   separated by a single space.                              *
+ *                                                             *
+ **************************************************************/
+
+var capitalize = function(str) {
+    /* YOUR CODE GOES HERE */
+
+};

capitalize/capitalize.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('capitalize', function() {
+    it('should exist', function(){
+        should.exist(capitalize);
+    });
+
+    it('should be a function', function() {
+        capitalize.should.be.a.Function;
+    });
+
+    it('should return an string', function() {
+        var result = capitalize('hello');
+        should.exist(result);
+        result.should.be.an.instanceof(String);
+    });
+
+    it('should return an empty string if no input provided', function() {
+        var result = capitalize();
+        result.should.be.eql('');
+    });
+
+    it('should capitalize a single character', function(){
+        var result = capitalize('a');
+        result.should.be.eql('A');
+    });
+
+    it('should capitalize the first letter of multiple worlds', function(){
+        var result = capitalize('hello world');
+        result.should.be.eql('Hello World');
+    });
+
+    it('should not change capitalization for any other character', function(){
+        var result = capitalize('hELLO wORLD');
+        result.should.be.eql('HELLO WORLD');
+    });
+
+});

capitalize/package.json

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+{
+  "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"
+  }
+}