From c2fff5181efbdba16ce0f7b1208ea6f370093a4a Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Wed, 11 Oct 2017 18:15:11 -0700
Subject: [PATCH 01/18] reverse string exercise

---
 exercises/reverse-string/README.md            | 106 ++++++++++++++++++
 .../reverse-string/canonical-schema.json      |  54 +++++++++
 exercises/reverse-string/description.md       |   1 +
 exercises/reverse-string/metadata.yml         |   5 +
 exercises/reverse-string/reverse-string.js    |  15 +++
 .../reverse-string/reverse-string.spec.js     |  51 +++++++++
 6 files changed, 232 insertions(+)
 create mode 100644 exercises/reverse-string/README.md
 create mode 100644 exercises/reverse-string/canonical-schema.json
 create mode 100644 exercises/reverse-string/description.md
 create mode 100644 exercises/reverse-string/metadata.yml
 create mode 100644 exercises/reverse-string/reverse-string.js
 create mode 100644 exercises/reverse-string/reverse-string.spec.js

diff --git a/exercises/reverse-string/README.md b/exercises/reverse-string/README.md
new file mode 100644
index 00000000..7b046b5b
--- /dev/null
+++ b/exercises/reverse-string/README.md
@@ -0,0 +1,106 @@
+# Reverse String
+
+The introductory exercise to arrays and strings. Just reverse input string.
+
+This is a typical first program for beginning programming in a new language
+or environment after being able to do simple tasks.
+
+The objectives are simple:
+
+- Write a function that reverses the input string.
+- Run the test suite and make sure that it succeeds.
+- Submit your solution and check it at the website.
+
+If everything goes well, you will be ready to fetch your first real exercise.
+
+## Tutorial
+
+This exercise has two files:
+
+- reverse-string.js
+- reverse-string.spec.js
+
+The first file is where you will write your code.
+The second is where the tests are defined.
+
+The tests will check whether your code is doing the right thing.
+You don't need to be able to write a test suite from scratch,
+but it helps to understand what a test looks like, and what
+it is doing.
+
+Open up the test file, reverse-string.spec.js.
+There is one test inside:
+
+  xit('detects simple reverse string', function () {
+    var subject = new ReverseString('ant');
+    var matches = subject.matches(['tna']);
+
+    expect(matches).toEqual(['tna']);
+  });
+
+Run the test now, with the following command on the command-line:
+
+    jasmine reverse-string.spec.js
+
+The test fails, which makes sense since you've not written any code yet.
+
+The failure looks like this:
+
+    1) Reverse String says reverse string
+       Message:
+          Expected undefined to equal 'tna'.
+
+There's more, but this is the most important part.
+
+Take a look at that first line:
+
+    1) Reverse String says reverse string
+
+Now look at the test definition again:
+
+    it('detects simple reverse string', function() {
+      // ... more code here ...
+    });
+
+Update the code and then run the tests again from the command-line:
+
+    jasmine reverse-string.spec.js
+
+Notice how it changes the failure message.
+
+Then change the implementation in reverse-string.js again, this time to make the test pass.
+
+When you are done, submit your solution to exercism:
+
+    exercism submit reverse-string.js
+
+
+## Setup
+
+Go through the setup instructions for JavaScript to
+install the necessary dependencies:
+
+http://exercism.io/languages/javascript
+
+## Making the Test Suite Pass
+
+Execute the tests with:
+
+    jasmine <exercise-name>.spec.js
+
+Replace `<exercise-name>` with the name of the current exercise. E.g., to
+test the Reverse String exercise:
+
+    jasmine reverse-string.spec.js
+
+In many test suites all but the first test have been skipped.
+
+Once you get a test passing, you can unskip the next one by
+changing `xit` to `it`.
+
+## Source
+
+This is an exercise to introduce users to using Exercism and arrays and strings [https://medium.freecodecamp.org/how-to-reverse-a-string-in-javascript-in-3-different-ways-75e4763c68cb](https://medium.freecodecamp.org/how-to-reverse-a-string-in-javascript-in-3-different-ways-75e4763c68cb)
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.
diff --git a/exercises/reverse-string/canonical-schema.json b/exercises/reverse-string/canonical-schema.json
new file mode 100644
index 00000000..33cc26ec
--- /dev/null
+++ b/exercises/reverse-string/canonical-schema.json
@@ -0,0 +1,54 @@
+{
+  "exercise": "revere-string",
+  "version": "1.0.1",
+  "comments": [
+    "The string argument cases possible matches are passed in as",
+    "individual arguments rather than arrays. Languages can include",
+    "these string argument cases if passing individual arguments is",
+    "idiomatic in that language."
+  ],
+  "cases": [
+    {
+      "description": "no matches",
+      "property": "reverse-string",
+      "subject": "car",
+      "candidates": ["girl", "Japan", "bear", "candy"],
+      "expected": []
+    },
+    {
+      "description": "detects simple reverse string",
+      "property": "reverse-string",
+      "subject": "ant",
+      "candidates": ["tna"],
+      "expected": ["tan"]
+    },
+    {
+      "description": "detects reverse-string",
+      "property": "reverse-string",
+      "subject": "listen",
+      "candidates": ["netsil"],
+      "expected": ["netsil"]
+    },
+    {
+      "description": "detects anagrams case-insensitively",
+      "property": "reverse-string",
+      "subject": "NinJa",
+      "candidates": ["ajnin"],
+      "expected": ["ajnin"]
+    },
+    {
+      "description": "matches() accepts string arguments",
+      "property": "reverse-string",
+      "subject": "ant",
+      "candidates": ["tna"],
+      "expected": ["tna"]
+    },
+    {
+      "description": "matches() accepts single string argument",
+      "property": "reverse-string",
+      "subject": "ant",
+      "candidates": ["ant"],
+      "expected": ["tna"]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/exercises/reverse-string/description.md b/exercises/reverse-string/description.md
new file mode 100644
index 00000000..e49b125e
--- /dev/null
+++ b/exercises/reverse-string/description.md
@@ -0,0 +1 @@
+With an input string, write code to reverse the string letters and return a string with reversed letters. Be sure to include error handling for an input that isn’t a string such as number or null values for inputs.
\ No newline at end of file
diff --git a/exercises/reverse-string/metadata.yml b/exercises/reverse-string/metadata.yml
new file mode 100644
index 00000000..5ae26bf0
--- /dev/null
+++ b/exercises/reverse-string/metadata.yml
@@ -0,0 +1,5 @@
+---
+blurb: "Given a string, reverse it’s letters and output a new string."
+title: "reverse-string"
+source: "Common introductory challenge to learn loops and strings"
+source_url: "https://medium.freecodecamp.org/how-to-reverse-a-string-in-javascript-in-3-different-ways-75e4763c68cb"
\ No newline at end of file
diff --git a/exercises/reverse-string/reverse-string.js b/exercises/reverse-string/reverse-string.js
new file mode 100644
index 00000000..f161a16d
--- /dev/null
+++ b/exercises/reverse-string/reverse-string.js
@@ -0,0 +1,15 @@
+//
+// This is a stub file for the 'Reverse String' exercise. It's been provided as a
+// convenience to get you started writing code faster.
+// Make sure to look at reverse-string.spec.js--that should give you some hints about what is
+// expected here.
+
+var ReverseString = function () {};
+
+ReverseString.prototype.reverse = function () {
+//
+// YOUR CODE GOES HERE
+//
+};
+
+module.exports = ReverseString;
diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
new file mode 100644
index 00000000..e6cfbbf2
--- /dev/null
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -0,0 +1,51 @@
+var ReverseString = require('./reverse-string');
+
+describe('ReverseString', function () {
+  it('no matches', function () {
+    var subject = new ReverseString('car');
+    var matches = subject.matches([ 'girl', 'Japan', 'bear', 'candy']);
+
+    expect(matches).toEqual([]);
+  });
+
+  xit('detects simple reverse string', function () {
+    var subject = new ReverseString('ant');
+    var matches = subject.matches(['tna']);
+
+    expect(matches).toEqual(['tna']);
+  });
+
+
+
+  xit('detects anagram', function () {
+    var subject = new ReverseString('listen');
+    var matches = subject.matches(['netsil']);
+
+    expect(matches).toEqual(['netsil']);
+  });
+
+
+
+  xit('detects anagrams case-insensitively', function () {
+    var subject = new ReverseString('NinJa');
+    var matches = subject.matches(['ajnin']);
+
+    expect(matches).toEqual(['ajnin']);
+  });
+
+
+
+  xit('matches() accepts string arguments', function () {
+    var subject = new ReverseString('ant');
+    var matches = subject.matches('tna');
+
+    expect(matches).toEqual(['tna']);
+  });
+
+  xit('matches() accepts single string argument', function () {
+    var subject = new ReverseString('ant');
+    var matches = subject.matches('tna');
+
+    expect(matches).toEqual(['tna']);
+  });
+});
\ No newline at end of file

From 839d560a3b04a30bd0550e086b073cdaf3937c17 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Mon, 27 Nov 2017 11:05:02 +1100
Subject: [PATCH 02/18] 3 files for submission

---
 exercises/reverse-string/example.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 exercises/reverse-string/example.js

diff --git a/exercises/reverse-string/example.js b/exercises/reverse-string/example.js
new file mode 100644
index 00000000..2b9180d6
--- /dev/null
+++ b/exercises/reverse-string/example.js
@@ -0,0 +1,14 @@
+'use strict';
+
+function reverseString(s) {}
+
+ReverseString.prototype.convert = function (s) {
+	
+  var rString = '';
+  for (var i=s.length-1; i>=0; i--){
+  	rString += s[i];
+  }
+  return rString;
+};
+
+module.exports = ReverseString;

From c5dc769f2c2ff86d869b500dfb9811f6098f93b3 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Tue, 28 Nov 2017 09:20:36 +1100
Subject: [PATCH 03/18] name updates

---
 exercises/reverse-string/README.md            | 76 +------------------
 .../reverse-string/canonical-schema.json      | 54 -------------
 exercises/reverse-string/description.md       |  1 -
 exercises/reverse-string/example.js           | 12 +--
 exercises/reverse-string/metadata.yml         |  5 --
 exercises/reverse-string/reverse-string.js    | 15 ----
 .../reverse-string/reverse-string.spec.js     | 50 +++++-------
 7 files changed, 30 insertions(+), 183 deletions(-)
 delete mode 100644 exercises/reverse-string/canonical-schema.json
 delete mode 100644 exercises/reverse-string/description.md
 delete mode 100644 exercises/reverse-string/metadata.yml
 delete mode 100644 exercises/reverse-string/reverse-string.js

diff --git a/exercises/reverse-string/README.md b/exercises/reverse-string/README.md
index 7b046b5b..d6d75bb9 100644
--- a/exercises/reverse-string/README.md
+++ b/exercises/reverse-string/README.md
@@ -1,78 +1,8 @@
 # Reverse String
 
-The introductory exercise to arrays and strings. Just reverse input string.
-
-This is a typical first program for beginning programming in a new language
-or environment after being able to do simple tasks.
-
-The objectives are simple:
-
-- Write a function that reverses the input string.
-- Run the test suite and make sure that it succeeds.
-- Submit your solution and check it at the website.
-
-If everything goes well, you will be ready to fetch your first real exercise.
-
-## Tutorial
-
-This exercise has two files:
-
-- reverse-string.js
-- reverse-string.spec.js
-
-The first file is where you will write your code.
-The second is where the tests are defined.
-
-The tests will check whether your code is doing the right thing.
-You don't need to be able to write a test suite from scratch,
-but it helps to understand what a test looks like, and what
-it is doing.
-
-Open up the test file, reverse-string.spec.js.
-There is one test inside:
-
-  xit('detects simple reverse string', function () {
-    var subject = new ReverseString('ant');
-    var matches = subject.matches(['tna']);
-
-    expect(matches).toEqual(['tna']);
-  });
-
-Run the test now, with the following command on the command-line:
-
-    jasmine reverse-string.spec.js
-
-The test fails, which makes sense since you've not written any code yet.
-
-The failure looks like this:
-
-    1) Reverse String says reverse string
-       Message:
-          Expected undefined to equal 'tna'.
-
-There's more, but this is the most important part.
-
-Take a look at that first line:
-
-    1) Reverse String says reverse string
-
-Now look at the test definition again:
-
-    it('detects simple reverse string', function() {
-      // ... more code here ...
-    });
-
-Update the code and then run the tests again from the command-line:
-
-    jasmine reverse-string.spec.js
-
-Notice how it changes the failure message.
-
-Then change the implementation in reverse-string.js again, this time to make the test pass.
-
-When you are done, submit your solution to exercism:
-
-    exercism submit reverse-string.js
+For example:
+input: "cool"
+output: "looc"
 
 
 ## Setup
diff --git a/exercises/reverse-string/canonical-schema.json b/exercises/reverse-string/canonical-schema.json
deleted file mode 100644
index 33cc26ec..00000000
--- a/exercises/reverse-string/canonical-schema.json
+++ /dev/null
@@ -1,54 +0,0 @@
-{
-  "exercise": "revere-string",
-  "version": "1.0.1",
-  "comments": [
-    "The string argument cases possible matches are passed in as",
-    "individual arguments rather than arrays. Languages can include",
-    "these string argument cases if passing individual arguments is",
-    "idiomatic in that language."
-  ],
-  "cases": [
-    {
-      "description": "no matches",
-      "property": "reverse-string",
-      "subject": "car",
-      "candidates": ["girl", "Japan", "bear", "candy"],
-      "expected": []
-    },
-    {
-      "description": "detects simple reverse string",
-      "property": "reverse-string",
-      "subject": "ant",
-      "candidates": ["tna"],
-      "expected": ["tan"]
-    },
-    {
-      "description": "detects reverse-string",
-      "property": "reverse-string",
-      "subject": "listen",
-      "candidates": ["netsil"],
-      "expected": ["netsil"]
-    },
-    {
-      "description": "detects anagrams case-insensitively",
-      "property": "reverse-string",
-      "subject": "NinJa",
-      "candidates": ["ajnin"],
-      "expected": ["ajnin"]
-    },
-    {
-      "description": "matches() accepts string arguments",
-      "property": "reverse-string",
-      "subject": "ant",
-      "candidates": ["tna"],
-      "expected": ["tna"]
-    },
-    {
-      "description": "matches() accepts single string argument",
-      "property": "reverse-string",
-      "subject": "ant",
-      "candidates": ["ant"],
-      "expected": ["tna"]
-    }
-  ]
-}
\ No newline at end of file
diff --git a/exercises/reverse-string/description.md b/exercises/reverse-string/description.md
deleted file mode 100644
index e49b125e..00000000
--- a/exercises/reverse-string/description.md
+++ /dev/null
@@ -1 +0,0 @@
-With an input string, write code to reverse the string letters and return a string with reversed letters. Be sure to include error handling for an input that isn’t a string such as number or null values for inputs.
\ No newline at end of file
diff --git a/exercises/reverse-string/example.js b/exercises/reverse-string/example.js
index 2b9180d6..4cc41114 100644
--- a/exercises/reverse-string/example.js
+++ b/exercises/reverse-string/example.js
@@ -1,14 +1,14 @@
 'use strict';
 
-function reverseString(s) {}
+function ReverseString(string) {}
 
-ReverseString.prototype.convert = function (s) {
+ReverseString.prototype.convert = function (string) {
 	
-  var rString = '';
-  for (var i=s.length-1; i>=0; i--){
-  	rString += s[i];
+  var revString = '';
+  for (var i=string.length-1; i>=0; i--){
+  	revString += string[i];
   }
-  return rString;
+  return revString;
 };
 
 module.exports = ReverseString;
diff --git a/exercises/reverse-string/metadata.yml b/exercises/reverse-string/metadata.yml
deleted file mode 100644
index 5ae26bf0..00000000
--- a/exercises/reverse-string/metadata.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-blurb: "Given a string, reverse it’s letters and output a new string."
-title: "reverse-string"
-source: "Common introductory challenge to learn loops and strings"
-source_url: "https://medium.freecodecamp.org/how-to-reverse-a-string-in-javascript-in-3-different-ways-75e4763c68cb"
\ No newline at end of file
diff --git a/exercises/reverse-string/reverse-string.js b/exercises/reverse-string/reverse-string.js
deleted file mode 100644
index f161a16d..00000000
--- a/exercises/reverse-string/reverse-string.js
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// This is a stub file for the 'Reverse String' exercise. It's been provided as a
-// convenience to get you started writing code faster.
-// Make sure to look at reverse-string.spec.js--that should give you some hints about what is
-// expected here.
-
-var ReverseString = function () {};
-
-ReverseString.prototype.reverse = function () {
-//
-// YOUR CODE GOES HERE
-//
-};
-
-module.exports = ReverseString;
diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index e6cfbbf2..895d64e7 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -1,51 +1,43 @@
 var ReverseString = require('./reverse-string');
 
 describe('ReverseString', function () {
-  it('no matches', function () {
-    var subject = new ReverseString('car');
-    var matches = subject.matches([ 'girl', 'Japan', 'bear', 'candy']);
+  it('empty string', function () {
+    var subject = new ReverseString("");
+    var matches = subject.matches([ ""]);
 
-    expect(matches).toEqual([]);
+    expect(matches).toEqual([""]);
   });
 
-  xit('detects simple reverse string', function () {
-    var subject = new ReverseString('ant');
-    var matches = subject.matches(['tna']);
+  xit('a word', function () {
+    var subject = new ReverseString('robot');
+    var matches = subject.matches(['tobor']);
 
-    expect(matches).toEqual(['tna']);
+    expect(matches).toEqual(['tobor']);
   });
 
 
+  xit('a capitalized word', function () {
+    var subject = new ReverseString('Ramen');
+    var matches = subject.matches(['nemaR']);
 
-  xit('detects anagram', function () {
-    var subject = new ReverseString('listen');
-    var matches = subject.matches(['netsil']);
-
-    expect(matches).toEqual(['netsil']);
+    expect(matches).toEqual(['nemaR']);
   });
 
 
+  xit('a sentence with punctuation', function () {
+    var subject = new ReverseString("I'm hungry");
+    var matches = subject.matches(["!!yrgnuh m'I"]);
 
-  xit('detects anagrams case-insensitively', function () {
-    var subject = new ReverseString('NinJa');
-    var matches = subject.matches(['ajnin']);
-
-    expect(matches).toEqual(['ajnin']);
+    expect(matches).toEqual(["!yrgnuh m'I"]);
   });
 
 
+  xit('a palindrome', function () {
+    var subject = new ReverseString('racecar');
+    var matches = subject.matches('racecar');
 
-  xit('matches() accepts string arguments', function () {
-    var subject = new ReverseString('ant');
-    var matches = subject.matches('tna');
-
-    expect(matches).toEqual(['tna']);
+    expect(matches).toEqual(['racecar']);
   });
 
-  xit('matches() accepts single string argument', function () {
-    var subject = new ReverseString('ant');
-    var matches = subject.matches('tna');
 
-    expect(matches).toEqual(['tna']);
-  });
-});
\ No newline at end of file
+});

From d6a092079baac0dd857092867dae5bd2691816b9 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Tue, 28 Nov 2017 09:47:38 +1100
Subject: [PATCH 04/18] more updates

---
 exercises/reverse-string/example.js             |  4 +++-
 exercises/reverse-string/reverse-string.spec.js | 13 ++++++-------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/exercises/reverse-string/example.js b/exercises/reverse-string/example.js
index 4cc41114..2d245bd0 100644
--- a/exercises/reverse-string/example.js
+++ b/exercises/reverse-string/example.js
@@ -1,6 +1,8 @@
 'use strict';
 
-function ReverseString(string) {}
+function ReverseString(string) {
+	this.string = string;
+}
 
 ReverseString.prototype.convert = function (string) {
 	
diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index 895d64e7..c1007edc 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -2,10 +2,10 @@ var ReverseString = require('./reverse-string');
 
 describe('ReverseString', function () {
   it('empty string', function () {
-    var subject = new ReverseString("");
-    var matches = subject.matches([ ""]);
+    var subject = new ReverseString('');
+    var matches = subject.matches([ '']);
 
-    expect(matches).toEqual([""]);
+    expect(matches).toEqual(['']);
   });
 
   xit('a word', function () {
@@ -25,10 +25,10 @@ describe('ReverseString', function () {
 
 
   xit('a sentence with punctuation', function () {
-    var subject = new ReverseString("I'm hungry");
-    var matches = subject.matches(["!!yrgnuh m'I"]);
+    var subject = new ReverseString('I am hungry!');
+    var matches = subject.matches(['!yrgnuh ma I']);
 
-    expect(matches).toEqual(["!yrgnuh m'I"]);
+    expect(matches).toEqual(['!yrgnuh ma I']);
   });
 
 
@@ -39,5 +39,4 @@ describe('ReverseString', function () {
     expect(matches).toEqual(['racecar']);
   });
 
-
 });

From 307452116719ce6868e5299f1e6329c442e4d5d1 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Thu, 30 Nov 2017 08:55:37 +1100
Subject: [PATCH 05/18] subject.matches is a function

---
 exercises/reverse-string/example.js             | 2 +-
 exercises/reverse-string/reverse-string.spec.js | 3 ---
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/exercises/reverse-string/example.js b/exercises/reverse-string/example.js
index 2d245bd0..016752d7 100644
--- a/exercises/reverse-string/example.js
+++ b/exercises/reverse-string/example.js
@@ -4,7 +4,7 @@ function ReverseString(string) {
 	this.string = string;
 }
 
-ReverseString.prototype.convert = function (string) {
+ReverseString.prototype.matches = function (string) {
 	
   var revString = '';
   for (var i=string.length-1; i>=0; i--){
diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index c1007edc..4a6e3767 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -15,7 +15,6 @@ describe('ReverseString', function () {
     expect(matches).toEqual(['tobor']);
   });
 
-
   xit('a capitalized word', function () {
     var subject = new ReverseString('Ramen');
     var matches = subject.matches(['nemaR']);
@@ -23,7 +22,6 @@ describe('ReverseString', function () {
     expect(matches).toEqual(['nemaR']);
   });
 
-
   xit('a sentence with punctuation', function () {
     var subject = new ReverseString('I am hungry!');
     var matches = subject.matches(['!yrgnuh ma I']);
@@ -31,7 +29,6 @@ describe('ReverseString', function () {
     expect(matches).toEqual(['!yrgnuh ma I']);
   });
 
-
   xit('a palindrome', function () {
     var subject = new ReverseString('racecar');
     var matches = subject.matches('racecar');

From 585a0c3e180587778373c3d67afcafb64d469594 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Thu, 30 Nov 2017 09:06:02 +1100
Subject: [PATCH 06/18] fixed array inputs

---
 .../reverse-string/reverse-string.spec.js      | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index 4a6e3767..dbb33906 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -3,37 +3,37 @@ var ReverseString = require('./reverse-string');
 describe('ReverseString', function () {
   it('empty string', function () {
     var subject = new ReverseString('');
-    var matches = subject.matches([ '']);
+    var matches = subject.matches('');
 
-    expect(matches).toEqual(['']);
+    expect(matches).toEqual('');
   });
 
   xit('a word', function () {
     var subject = new ReverseString('robot');
-    var matches = subject.matches(['tobor']);
+    var matches = subject.matches('tobor');
 
-    expect(matches).toEqual(['tobor']);
+    expect(matches).toEqual('tobor');
   });
 
   xit('a capitalized word', function () {
     var subject = new ReverseString('Ramen');
-    var matches = subject.matches(['nemaR']);
+    var matches = subject.matches('nemaR');
 
-    expect(matches).toEqual(['nemaR']);
+    expect(matches).toEqual('nemaR');
   });
 
   xit('a sentence with punctuation', function () {
     var subject = new ReverseString('I am hungry!');
-    var matches = subject.matches(['!yrgnuh ma I']);
+    var matches = subject.matches('!yrgnuh ma I');
 
-    expect(matches).toEqual(['!yrgnuh ma I']);
+    expect(matches).toEqual('!yrgnuh ma I');
   });
 
   xit('a palindrome', function () {
     var subject = new ReverseString('racecar');
     var matches = subject.matches('racecar');
 
-    expect(matches).toEqual(['racecar']);
+    expect(matches).toEqual('racecar');
   });
 
 });

From 22fb4617f124a1f255631eb32431e2868a047de3 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Thu, 30 Nov 2017 13:06:32 +1100
Subject: [PATCH 07/18] modified matches

---
 exercises/reverse-string/reverse-string.spec.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index dbb33906..19ae2513 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -10,21 +10,21 @@ describe('ReverseString', function () {
 
   xit('a word', function () {
     var subject = new ReverseString('robot');
-    var matches = subject.matches('tobor');
+    var matches = subject.matches('robot');
 
     expect(matches).toEqual('tobor');
   });
 
   xit('a capitalized word', function () {
     var subject = new ReverseString('Ramen');
-    var matches = subject.matches('nemaR');
+    var matches = subject.matches('Ramen');
 
     expect(matches).toEqual('nemaR');
   });
 
   xit('a sentence with punctuation', function () {
     var subject = new ReverseString('I am hungry!');
-    var matches = subject.matches('!yrgnuh ma I');
+    var matches = subject.matches('I am hungry!');
 
     expect(matches).toEqual('!yrgnuh ma I');
   });

From 300c129fe8a9a7015a52ac9a04abe885367b85ed Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Fri, 1 Dec 2017 08:00:02 +1100
Subject: [PATCH 08/18] spacing updates

---
 exercises/reverse-string/reverse-string.spec.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index 19ae2513..87849a33 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -35,5 +35,4 @@ describe('ReverseString', function () {
 
     expect(matches).toEqual('racecar');
   });
-
 });

From 1a390ddc5f5000818cc665876dc1d76b7520767f Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Fri, 1 Dec 2017 08:03:39 +1100
Subject: [PATCH 09/18] spacing updates #2

---
 exercises/reverse-string/example.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/exercises/reverse-string/example.js b/exercises/reverse-string/example.js
index 016752d7..8d238b43 100644
--- a/exercises/reverse-string/example.js
+++ b/exercises/reverse-string/example.js
@@ -1,14 +1,13 @@
 'use strict';
 
 function ReverseString(string) {
-	this.string = string;
+  this.string = string;
 }
 
-ReverseString.prototype.matches = function (string) {
-	
+ReverseString.prototype.matches=function(string){
   var revString = '';
   for (var i=string.length-1; i>=0; i--){
-  	revString += string[i];
+   revString += string[i];
   }
   return revString;
 };

From 808cf1131e6343a5149316b3d421a0e0c400f839 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Fri, 1 Dec 2017 08:08:42 +1100
Subject: [PATCH 10/18] spacing updates #3

---
 exercises/reverse-string/example.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/exercises/reverse-string/example.js b/exercises/reverse-string/example.js
index 8d238b43..8181fc92 100644
--- a/exercises/reverse-string/example.js
+++ b/exercises/reverse-string/example.js
@@ -4,10 +4,10 @@ function ReverseString(string) {
   this.string = string;
 }
 
-ReverseString.prototype.matches=function(string){
+ReverseString.prototype.matches = function (string) {
   var revString = '';
-  for (var i=string.length-1; i>=0; i--){
-   revString += string[i];
+  for (var i = string.length-1; i >= 0; i--) {
+    revString += string[i];
   }
   return revString;
 };

From 3d07b604c6bea6415eb6f3b983c5da8063c5c05a Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Fri, 1 Dec 2017 08:14:46 +1100
Subject: [PATCH 11/18] spacing updates #4

---
 exercises/reverse-string/example.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exercises/reverse-string/example.js b/exercises/reverse-string/example.js
index 8181fc92..b9ae51dc 100644
--- a/exercises/reverse-string/example.js
+++ b/exercises/reverse-string/example.js
@@ -6,7 +6,7 @@ function ReverseString(string) {
 
 ReverseString.prototype.matches = function (string) {
   var revString = '';
-  for (var i = string.length-1; i >= 0; i--) {
+  for (var i = string.length - 1; i >= 0; i--) {
     revString += string[i];
   }
   return revString;

From b432096297759701038b2ec80a259cca6edf7010 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Mon, 4 Dec 2017 12:22:42 +1100
Subject: [PATCH 12/18] config.json reverse string

---
 config.json | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/config.json b/config.json
index e89cb8bb..abeca950 100644
--- a/config.json
+++ b/config.json
@@ -24,6 +24,18 @@
       ],
       "uuid": "0c231a1c-55f7-47b6-8a54-ccae4ab0c65b"
     },
+    {
+      "core": false,
+      "difficulty": 2,
+      "slug": "reverse-string",
+      "topics": [
+        "loops",
+        "for",
+        "strings"
+      ],
+      "unlocked_by": "leap",
+      "uuid": "553a6be7-eecb-45dc-9cea-05126c525f1b"
+    },
     {
       "core": true,
       "difficulty": 1,

From 5cc8bafcb96107506f905d9fcbc852788e4a5389 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Mon, 25 Dec 2017 21:21:17 +1100
Subject: [PATCH 13/18] updated spec and example files

---
 exercises/reverse-string/example.js           |  8 +---
 .../reverse-string/reverse-string.spec.js     | 44 ++++++++-----------
 2 files changed, 21 insertions(+), 31 deletions(-)

diff --git a/exercises/reverse-string/example.js b/exercises/reverse-string/example.js
index b9ae51dc..05e70f89 100644
--- a/exercises/reverse-string/example.js
+++ b/exercises/reverse-string/example.js
@@ -1,15 +1,11 @@
 'use strict';
 
 function ReverseString(string) {
-  this.string = string;
-}
-
-ReverseString.prototype.matches = function (string) {
   var revString = '';
   for (var i = string.length - 1; i >= 0; i--) {
     revString += string[i];
   }
   return revString;
-};
+}
 
-module.exports = ReverseString;
+module.exports = ReverseString;
\ No newline at end of file
diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index 87849a33..e80ec0a5 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -2,37 +2,31 @@ var ReverseString = require('./reverse-string');
 
 describe('ReverseString', function () {
   it('empty string', function () {
-    var subject = new ReverseString('');
-    var matches = subject.matches('');
-
-    expect(matches).toEqual('');
+    var expected = '';                
+    var actual = ReverseString(''); 
+    expect(actual).toEqual(expected);  
   });
-
-  xit('a word', function () {
-    var subject = new ReverseString('robot');
-    var matches = subject.matches('robot');
-
-    expect(matches).toEqual('tobor');
+  it('a word', function () {
+    var expected = 'tac';                
+    var actual = ReverseString('cat');  
+    expect(actual).toEqual(expected);  
   });
 
-  xit('a capitalized word', function () {
-    var subject = new ReverseString('Ramen');
-    var matches = subject.matches('Ramen');
-
-    expect(matches).toEqual('nemaR');
+  it('a capitalized word', function () {
+    var expected = 'nemaR';                
+    var actual = ReverseString('Ramen');  
+    expect(actual).toEqual(expected);  
   });
 
-  xit('a sentence with punctuation', function () {
-    var subject = new ReverseString('I am hungry!');
-    var matches = subject.matches('I am hungry!');
-
-    expect(matches).toEqual('!yrgnuh ma I');
+  it('a sentence with punctuation', function () {
+    var expected = '!yrgnuh ma I';                
+    var actual = ReverseString('I am hungry!');  
+    expect(actual).toEqual(expected);  
   });
 
-  xit('a palindrome', function () {
-    var subject = new ReverseString('racecar');
-    var matches = subject.matches('racecar');
-
-    expect(matches).toEqual('racecar');
+  it('a palindrome', function () {
+    var expected = 'racecar';                
+    var actual = ReverseString('racecar');  
+    expect(actual).toEqual(expected);  
   });
 });

From 2a2cae8e838c3a2b5647a7859dcde8cae245f0a3 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Mon, 25 Dec 2017 21:46:23 +1100
Subject: [PATCH 14/18] updated spec and example files v2

---
 exercises/reverse-string/example.js           |  4 +--
 .../reverse-string/reverse-string.spec.js     | 30 +++++++++----------
 2 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/exercises/reverse-string/example.js b/exercises/reverse-string/example.js
index 05e70f89..b19b8d8d 100644
--- a/exercises/reverse-string/example.js
+++ b/exercises/reverse-string/example.js
@@ -1,6 +1,6 @@
 'use strict';
 
-function ReverseString(string) {
+function reverseString(string) {
   var revString = '';
   for (var i = string.length - 1; i >= 0; i--) {
     revString += string[i];
@@ -8,4 +8,4 @@ function ReverseString(string) {
   return revString;
 }
 
-module.exports = ReverseString;
\ No newline at end of file
+module.exports = reverseString;
diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index e80ec0a5..f2005411 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -1,32 +1,32 @@
-var ReverseString = require('./reverse-string');
+var reverseString = require('./reverse-string');
 
 describe('ReverseString', function () {
   it('empty string', function () {
-    var expected = '';                
-    var actual = ReverseString(''); 
+    var expected = '';
+    var actual = reverseString('');
     expect(actual).toEqual(expected);  
   });
   it('a word', function () {
-    var expected = 'tac';                
-    var actual = ReverseString('cat');  
-    expect(actual).toEqual(expected);  
+    var expected = 'tac';  
+    var actual = reverseString('cat');
+    expect(actual).toEqual(expected);
   });
 
   it('a capitalized word', function () {
-    var expected = 'nemaR';                
-    var actual = ReverseString('Ramen');  
-    expect(actual).toEqual(expected);  
+    var expected = 'nemaR';      
+    var actual = reverseString('Ramen');
+    expect(actual).toEqual(expected);
   });
 
   it('a sentence with punctuation', function () {
-    var expected = '!yrgnuh ma I';                
-    var actual = ReverseString('I am hungry!');  
-    expect(actual).toEqual(expected);  
+    var expected = '!yrgnuh ma I';            
+    var actual = reverseString('I am hungry!');
+    expect(actual).toEqual(expected); 
   });
 
   it('a palindrome', function () {
-    var expected = 'racecar';                
-    var actual = ReverseString('racecar');  
-    expect(actual).toEqual(expected);  
+    var expected = 'racecar';    
+    var actual = reverseString('racecar');
+    expect(actual).toEqual(expected);
   });
 });

From 96e1ec4471e41b914c527be028efee0c75cb2463 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Mon, 25 Dec 2017 23:05:39 +1100
Subject: [PATCH 15/18] updated spec and example files v3

---
 exercises/reverse-string/reverse-string.spec.js | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index f2005411..d4234de7 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -4,28 +4,29 @@ describe('ReverseString', function () {
   it('empty string', function () {
     var expected = '';
     var actual = reverseString('');
-    expect(actual).toEqual(expected);  
+    expect(actual).toEqual(expected);
   });
+  
   it('a word', function () {
-    var expected = 'tac';  
-    var actual = reverseString('cat');
+    var expected = 'tobor';
+    var actual = reverseString('robot');
     expect(actual).toEqual(expected);
   });
 
   it('a capitalized word', function () {
-    var expected = 'nemaR';      
+    var expected = 'nemaR';
     var actual = reverseString('Ramen');
     expect(actual).toEqual(expected);
   });
 
   it('a sentence with punctuation', function () {
-    var expected = '!yrgnuh ma I';            
+    var expected = '!yrgnuh ma I';           
     var actual = reverseString('I am hungry!');
-    expect(actual).toEqual(expected); 
+    expect(actual).toEqual(expected);
   });
 
   it('a palindrome', function () {
-    var expected = 'racecar';    
+    var expected = 'racecar';   
     var actual = reverseString('racecar');
     expect(actual).toEqual(expected);
   });

From 2dd30400bc21390382735b9f5a5c6b3fd1691cd7 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Mon, 25 Dec 2017 23:13:52 +1100
Subject: [PATCH 16/18] updated spec and example files v4

---
 exercises/reverse-string/reverse-string.spec.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index d4234de7..3b364b5e 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -6,7 +6,7 @@ describe('ReverseString', function () {
     var actual = reverseString('');
     expect(actual).toEqual(expected);
   });
-  
+
   it('a word', function () {
     var expected = 'tobor';
     var actual = reverseString('robot');
@@ -20,13 +20,13 @@ describe('ReverseString', function () {
   });
 
   it('a sentence with punctuation', function () {
-    var expected = '!yrgnuh ma I';           
+    var expected = '!yrgnuh ma I';    
     var actual = reverseString('I am hungry!');
     expect(actual).toEqual(expected);
   });
 
   it('a palindrome', function () {
-    var expected = 'racecar';   
+    var expected = 'racecar';
     var actual = reverseString('racecar');
     expect(actual).toEqual(expected);
   });

From 6c28184c4f574bcb2140011cdae7203b86aef42e Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Mon, 25 Dec 2017 23:16:56 +1100
Subject: [PATCH 17/18] updated spec and example files v5

---
 exercises/reverse-string/reverse-string.spec.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index 3b364b5e..d7cffb43 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -20,7 +20,7 @@ describe('ReverseString', function () {
   });
 
   it('a sentence with punctuation', function () {
-    var expected = '!yrgnuh ma I';    
+    var expected = '!yrgnuh ma I';
     var actual = reverseString('I am hungry!');
     expect(actual).toEqual(expected);
   });

From 865832a78f63bc2d88cbf075178c0f6e1999d0b2 Mon Sep 17 00:00:00 2001
From: eliaahadi <elia.ahadi@gmail.com>
Date: Tue, 26 Dec 2017 23:48:33 +1000
Subject: [PATCH 18/18] updated spec and example files v6

---
 exercises/reverse-string/reverse-string.spec.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/exercises/reverse-string/reverse-string.spec.js b/exercises/reverse-string/reverse-string.spec.js
index d7cffb43..c6d6327c 100644
--- a/exercises/reverse-string/reverse-string.spec.js
+++ b/exercises/reverse-string/reverse-string.spec.js
@@ -7,25 +7,25 @@ describe('ReverseString', function () {
     expect(actual).toEqual(expected);
   });
 
-  it('a word', function () {
+  xit('a word', function () {
     var expected = 'tobor';
     var actual = reverseString('robot');
     expect(actual).toEqual(expected);
   });
 
-  it('a capitalized word', function () {
+  xit('a capitalized word', function () {
     var expected = 'nemaR';
     var actual = reverseString('Ramen');
     expect(actual).toEqual(expected);
   });
 
-  it('a sentence with punctuation', function () {
+  xit('a sentence with punctuation', function () {
     var expected = '!yrgnuh ma I';
     var actual = reverseString('I am hungry!');
     expect(actual).toEqual(expected);
   });
 
-  it('a palindrome', function () {
+  xit('a palindrome', function () {
     var expected = 'racecar';
     var actual = reverseString('racecar');
     expect(actual).toEqual(expected);