From 56decafce154f8417a033892825caeb12506e315 Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Thu, 19 Oct 2017 14:04:09 -0400
Subject: [PATCH 01/20] var to const, start over from 0

---
 src/es6.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/es6.js b/src/es6.js
index eb846ab..f72d0b4 100644
--- a/src/es6.js
+++ b/src/es6.js
@@ -8,6 +8,8 @@
 // const, =>, default parameters, arrow functions default return statements using ()
 
 var food = 'pineapple';
+// var changes to const
+const food = 'pineapple';
 
 var isMyFavoriteFood = function(food) {
   food = food || 'thousand-year-old egg'; //This sets a default value if `food` is falsey

From 557b785456635f0c54a56f238e197d55e1286223 Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Fri, 20 Oct 2017 17:31:46 -0400
Subject: [PATCH 02/20] each 1st test passed, working on es6

---
 src/arrays.js | 4 ++++
 src/es6.js    | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/arrays.js b/src/arrays.js
index f24d6ef..3395bf3 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -6,6 +6,10 @@ const each = (elements, cb) => {
   // Iterates over a list of elements, yielding each in turn to the `cb` function.
   // This only needs to work with arrays.
   // based off http://underscorejs.org/#each
+
+  for (let i = 0; i < elements.length; i++) {
+    cb(elements[i]);
+  }
 };
 
 const map = (elements, cb) => {
diff --git a/src/es6.js b/src/es6.js
index f72d0b4..33c1d05 100644
--- a/src/es6.js
+++ b/src/es6.js
@@ -7,7 +7,7 @@
 //----------------
 // const, =>, default parameters, arrow functions default return statements using ()
 
-var food = 'pineapple';
+//var food = 'pineapple';
 // var changes to const
 const food = 'pineapple';
 

From b6cd71318b53c753e7294fd7e49e57e101f74b9d Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Fri, 20 Oct 2017 17:33:01 -0400
Subject: [PATCH 03/20] second each test passed index correctly

---
 src/arrays.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/arrays.js b/src/arrays.js
index 3395bf3..06c9ac6 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -8,7 +8,7 @@ const each = (elements, cb) => {
   // based off http://underscorejs.org/#each
 
   for (let i = 0; i < elements.length; i++) {
-    cb(elements[i]);
+    cb(elements[i], i);
   }
 };
 

From e44d949d3daaeea8fc4a2193e3ced2d8af0c17cd Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Fri, 20 Oct 2017 17:36:58 -0400
Subject: [PATCH 04/20] one test in map passing, need to pass elements
 correctly

---
 src/arrays.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/arrays.js b/src/arrays.js
index 06c9ac6..caba40c 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -15,6 +15,12 @@ const each = (elements, cb) => {
 const map = (elements, cb) => {
   // Produces a new array of values by mapping each value in list through a transformation function (iteratee).
   // Return the new array.
+
+  const newArray = [];
+  for (let i = 0; i < elements.length; i++) {
+    newArray.push(elements[i]);
+  }
+  return newArray;
 };
 
 const reduce = (elements, cb, memo) => {

From 4bdf9157e2d09b3d754b290f2260defff521e07b Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Fri, 20 Oct 2017 17:41:35 -0400
Subject: [PATCH 05/20] map working, push elements correctly

---
 src/arrays.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/arrays.js b/src/arrays.js
index caba40c..3e7e826 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -16,11 +16,11 @@ const map = (elements, cb) => {
   // Produces a new array of values by mapping each value in list through a transformation function (iteratee).
   // Return the new array.
 
-  const newArray = [];
+  const resultArray = [];
   for (let i = 0; i < elements.length; i++) {
-    newArray.push(elements[i]);
+    resultArray.push(cb(elements[i]));
   }
-  return newArray;
+  return resultArray;
 };
 
 const reduce = (elements, cb, memo) => {

From b589fc492f7c2145f09615da77e6097806d0376f Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Mon, 23 Oct 2017 15:56:09 -0400
Subject: [PATCH 06/20] added forEach version of map, left in for loop
 commented out

---
 src/arrays.js | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/arrays.js b/src/arrays.js
index 3e7e826..bee17ec 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -17,9 +17,13 @@ const map = (elements, cb) => {
   // Return the new array.
 
   const resultArray = [];
-  for (let i = 0; i < elements.length; i++) {
-    resultArray.push(cb(elements[i]));
-  }
+  // for (let i = 0; i < elements.length; i++) {
+  //   resultArray.push(cb(elements[i]));
+  //  THIS IS THE for loop version (above)
+  // THIS IS THE forEach version (below)
+  each(elements, (elem) => {
+    resultArray.push(cb(elem));
+  });
   return resultArray;
 };
 

From 9c59e8823d20d459f518e99039cf18d13f8c0d0a Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Mon, 23 Oct 2017 20:42:47 -0400
Subject: [PATCH 07/20] reduce passes tests

---
 src/arrays.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/arrays.js b/src/arrays.js
index bee17ec..779962e 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -20,6 +20,7 @@ const map = (elements, cb) => {
   // for (let i = 0; i < elements.length; i++) {
   //   resultArray.push(cb(elements[i]));
   //  THIS IS THE for loop version (above)
+  //
   // THIS IS THE forEach version (below)
   each(elements, (elem) => {
     resultArray.push(cb(elem));
@@ -31,12 +32,26 @@ const reduce = (elements, cb, memo) => {
   // Combine all elements into a single value going from left to right.
   // Elements will be passed one by one into `cb`.
   // `memo` is the starting value.  If `memo` is undefined then make `elements[0]` the initial value.
+  //
+  // for(let i = 0; i < elements.length; i++){
+  if (memo === undefined) {
+    memo = elements.shift();
+  }
+  each(elements, (elem) => {
+    memo = cb(memo, elem);
+  });
+  return memo;
 };
 
 const find = (elements, cb) => {
   // Look through each value in `elements` and pass each element to `cb`.
   // If `cb` returns `true` then return that element.
   // Return `undefined` if no elements pass the truth test.
+  each(elements, (elem) => {
+    if (cb[elem] === true) {
+      return true;
+    }
+  });
 };
 
 const filter = (elements, cb) => {

From d1809416f0fe71819e4bb860a0815b91c23326e5 Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Mon, 23 Oct 2017 20:51:19 -0400
Subject: [PATCH 08/20] reduce passes test, and does not modify original array

---
 src/arrays.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/arrays.js b/src/arrays.js
index 779962e..8a1d48f 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -34,12 +34,14 @@ const reduce = (elements, cb, memo) => {
   // `memo` is the starting value.  If `memo` is undefined then make `elements[0]` the initial value.
   //
   // for(let i = 0; i < elements.length; i++){
+  let i = 0;
   if (memo === undefined) {
-    memo = elements.shift();
+    memo = elements[0];
+    i = 1;
+  }
+  for (; i < elements.length; i++) {
+    memo = cb(memo, elements[i]);
   }
-  each(elements, (elem) => {
-    memo = cb(memo, elem);
-  });
   return memo;
 };
 

From 995e9cbc5db21052d653d03e4fe6fdcc1dcbad5f Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Mon, 23 Oct 2017 23:20:52 -0400
Subject: [PATCH 09/20] flatten array without nested array passes

---
 src/arrays.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/arrays.js b/src/arrays.js
index 8a1d48f..c847201 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -64,6 +64,18 @@ const filter = (elements, cb) => {
 const flatten = (elements) => {
   // Flattens a nested array (the nesting can be to any depth).
   // Example: flatten([1, [2], [3, [[4]]]]); => [1, 2, 3, 4];
+  const result = [];
+  each(elements, (elem) => {
+    if (Array.isArray(elem)) {
+      const nestedArray = elem;
+      each(nestedArray, (nestedElem) => {
+        result.push(nestedElem);
+      });
+    } else {
+      result.push(elem);
+    }
+  });
+  return result;
 };
 
 /* eslint-enable no-unused-vars, max-len */

From 48656fafac5e853f34707a6dff86d0fe47f6d896 Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Mon, 23 Oct 2017 23:57:50 -0400
Subject: [PATCH 10/20] flatten array passes all 3 tests

---
 src/arrays.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/arrays.js b/src/arrays.js
index c847201..c0ea324 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -62,6 +62,12 @@ const filter = (elements, cb) => {
 };
 
 const flatten = (elements) => {
+  elements = map(elements, (elem) => {
+    if (Array.isArray(elem)) {
+      return flatten(elem);
+    }
+    return elem;
+  });
   // Flattens a nested array (the nesting can be to any depth).
   // Example: flatten([1, [2], [3, [[4]]]]); => [1, 2, 3, 4];
   const result = [];

From f2876d5cadb3b0d271722e277e211a32f9eadcc2 Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 00:18:20 -0400
Subject: [PATCH 11/20] flatten array refactored, recursive call flatten within
 flatten function

---
 src/arrays.js | 35 ++++++++++++++++++++++++-----------
 1 file changed, 24 insertions(+), 11 deletions(-)

diff --git a/src/arrays.js b/src/arrays.js
index c0ea324..b341a44 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -62,21 +62,34 @@ const filter = (elements, cb) => {
 };
 
 const flatten = (elements) => {
-  elements = map(elements, (elem) => {
-    if (Array.isArray(elem)) {
-      return flatten(elem);
-    }
-    return elem;
-  });
   // Flattens a nested array (the nesting can be to any depth).
   // Example: flatten([1, [2], [3, [[4]]]]); => [1, 2, 3, 4];
-  const result = [];
+  //
+//   elements = map(elements, (elem) => {
+//     if (Array.isArray(elem)) {
+//       return flatten(elem);
+//     }
+//     return elem;
+//   });
+//   const result = [];
+//   each(elements, (elem) => {
+//     if (Array.isArray(elem)) {
+//       const nestedArray = elem;
+//       each(nestedArray, (nestedElem) => {
+//         result.push(nestedElem);
+//       });
+//     } else {
+//       result.push(elem);
+//     }
+//   });
+//   return result;
+// };
+// or
+  let result = [];
   each(elements, (elem) => {
     if (Array.isArray(elem)) {
-      const nestedArray = elem;
-      each(nestedArray, (nestedElem) => {
-        result.push(nestedElem);
-      });
+      const nestedArray = flatten(elem);
+      result = result.concat(nestedArray);
     } else {
       result.push(elem);
     }

From 5ea77690c8c917255d8c81327a346156f53d21f9 Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 00:34:30 -0400
Subject: [PATCH 12/20] find works, some trouble using each instead of for loop

---
 src/arrays.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/arrays.js b/src/arrays.js
index b341a44..6dccbd9 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -49,11 +49,11 @@ const find = (elements, cb) => {
   // Look through each value in `elements` and pass each element to `cb`.
   // If `cb` returns `true` then return that element.
   // Return `undefined` if no elements pass the truth test.
-  each(elements, (elem) => {
-    if (cb[elem] === true) {
-      return true;
+  for (let i = 0; i < elements.length; i++) {
+    if (cb(elements[i]) === true) {
+      return elements[i];
     }
-  });
+  }
 };
 
 const filter = (elements, cb) => {

From 44f6592a7e6a5623a850eefc1bd18aab8dca0eb8 Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 00:37:19 -0400
Subject: [PATCH 13/20] filter works, ty patrick

---
 src/arrays.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/arrays.js b/src/arrays.js
index 6dccbd9..40cbed0 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -59,6 +59,13 @@ const find = (elements, cb) => {
 const filter = (elements, cb) => {
   // Similar to `find` but you will return an array of all elements that passed the truth test
   // Return an empty array if no elements pass the truth test
+  const trueArray = []; 
+  for (let i = 0; i < elements.length; i++) {
+    if (cb(elements[i]) === true) {
+      trueArray.push(elements[i]);
+    }
+  }
+  return trueArray;
 };
 
 const flatten = (elements) => {

From ec2e1acf56f9c1ab0591b2da6e568468a228a74d Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 00:46:55 -0400
Subject: [PATCH 14/20] starting on objects, keys are easy

---
 src/arrays.js  | 2 +-
 src/objects.js | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/arrays.js b/src/arrays.js
index 40cbed0..624df6b 100644
--- a/src/arrays.js
+++ b/src/arrays.js
@@ -59,7 +59,7 @@ const find = (elements, cb) => {
 const filter = (elements, cb) => {
   // Similar to `find` but you will return an array of all elements that passed the truth test
   // Return an empty array if no elements pass the truth test
-  const trueArray = []; 
+  const trueArray = [];
   for (let i = 0; i < elements.length; i++) {
     if (cb(elements[i]) === true) {
       trueArray.push(elements[i]);
diff --git a/src/objects.js b/src/objects.js
index ba39c6c..168e530 100644
--- a/src/objects.js
+++ b/src/objects.js
@@ -5,6 +5,7 @@ const keys = (obj) => {
   // Retrieve all the names of the object's properties.
   // Return the keys as strings in an array.
   // Based on http://underscorejs.org/#keys
+  return Object.keys(obj);
 };
 
 const values = (obj) => {

From 55bdb5a71096a05e6c38721fbfd744d4c7a6142b Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 00:59:24 -0400
Subject: [PATCH 15/20] starting on objects, values were not easy. many failed
 tries, map worked

---
 src/objects.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/objects.js b/src/objects.js
index 168e530..4450d0a 100644
--- a/src/objects.js
+++ b/src/objects.js
@@ -12,6 +12,10 @@ const values = (obj) => {
   // Return all of the values of the object's own properties.
   // Ignore functions
   // http://underscorejs.org/#values
+  const vals = Object.keys(obj).map((key) => {
+    return obj[key];
+  });
+  return vals;
 };
 
 const mapObject = (obj, cb) => {

From 8958a382879773129459c793ba4c1fd81c2999ed Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 01:07:43 -0400
Subject: [PATCH 16/20] mapObject all set, create object and pass into newObj

---
 src/objects.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/objects.js b/src/objects.js
index 4450d0a..f5f8a6d 100644
--- a/src/objects.js
+++ b/src/objects.js
@@ -21,6 +21,11 @@ const values = (obj) => {
 const mapObject = (obj, cb) => {
   // Like map for arrays, but for objects. Transform the value of each property in turn.
   // http://underscorejs.org/#mapObject
+  const newObj = {};
+  Object.keys(obj).forEach((key) => {
+    newObj[key] = cb(obj[key]);
+  });
+  return newObj;
 };
 
 const pairs = (obj) => {

From 118cbf5cd2f9f3cde44b2e187b8e023b7723fa82 Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 01:27:27 -0400
Subject: [PATCH 17/20] closure counter example done, albeit out of order

---
 src/closure.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/closure.js b/src/closure.js
index 4c98af0..b7324f0 100644
--- a/src/closure.js
+++ b/src/closure.js
@@ -5,7 +5,13 @@ const counter = () => {
   // Example: const newCounter = counter();
   // newCounter(); // 1
   // newCounter(); // 2
+  let count = 0;
+  return () => {
+    count++;
+    return count;
+  };
 };
+const counterFunction = counter();
 
 const counterFactory = () => {
   // Return an object that has two methods called `increment` and `decrement`.

From 4da1bcbd60dafc08a83fb9443a115b317e26cc5b Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 01:49:02 -0400
Subject: [PATCH 18/20] object pairs and invert completed, invert similar to
 map just setting key instead

---
 src/objects.js | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/objects.js b/src/objects.js
index f5f8a6d..bb0073e 100644
--- a/src/objects.js
+++ b/src/objects.js
@@ -16,6 +16,8 @@ const values = (obj) => {
     return obj[key];
   });
   return vals;
+  // return Object.values(obj);
+  // coming up not a function but clearly is and should pass
 };
 
 const mapObject = (obj, cb) => {
@@ -30,13 +32,25 @@ const mapObject = (obj, cb) => {
 
 const pairs = (obj) => {
   // Convert an object into a list of [key, value] pairs.
-  // http://underscorejs.org/#pairs
+  // http://underscorejs.org/#
+  const pairArray = [];
+  Object.keys(obj).forEach((key) => {
+    const nestPairArr = [];
+    nestPairArr.push(key, obj[key]);
+    pairArray.push(nestPairArr);
+  });
+  return pairArray;
 };
 
 const invert = (obj) => {
   // Returns a copy of the object where the keys have become the values and the values the keys.
   // Assume that all of the object's values will be unique and string serializable.
   // http://underscorejs.org/#invert
+  const newObj = {};
+  Object.keys(obj).forEach((key) => {
+    newObj[obj[key]] = key;
+  });
+  return newObj;
 };
 
 const defaults = (obj, defaultProps) => {

From 6d414a77890a1500e5a1b09d12957a54cb66254f Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 01:50:40 -0400
Subject: [PATCH 19/20] objects completed

---
 src/objects.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/objects.js b/src/objects.js
index bb0073e..f564745 100644
--- a/src/objects.js
+++ b/src/objects.js
@@ -57,6 +57,13 @@ const defaults = (obj, defaultProps) => {
   // Fill in undefined properties that match properties on the `defaultProps` parameter object.
   // Return `obj`.
   // http://underscorejs.org/#defaults
+  Object.keys(defaultProps).forEach((key) => {
+    if (Object.prototype.hasOwnProperty.call(obj, key)) {
+      return;
+    }
+    obj[key] = defaultProps[key];
+  });
+  return obj;
 };
 
 /* eslint-enable no-unused-vars */

From 05d4a3faeb9e766bae52050949b0a9460cc202f7 Mon Sep 17 00:00:00 2001
From: JCamp-12 <username@users.noreply.github.com>
Date: Tue, 24 Oct 2017 10:56:27 -0400
Subject: [PATCH 20/20] classes work, cat extends animal

---
 src/class.js | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/class.js b/src/class.js
index 8276e29..37be978 100644
--- a/src/class.js
+++ b/src/class.js
@@ -6,6 +6,16 @@
 // for a potential password that will be compared to the `password` property.
 // Return true if the potential password matches the `password` property.  Otherwise return false.
 
+class User {
+  constructor(options) {
+    this.email = options.email;
+    this.password = options.password;
+  }
+  comparePasswords(pw) {
+    if (pw === this.password) return true;
+    return false;
+  }
+}
 
 /* eslint-disable no-undef */ // Remove this comment once you write your classes.
 
@@ -14,11 +24,29 @@
 // `Cat` should extend the `Animal` class.
 // Animal and Cat should both have a parameter called `options` in their constructors.
 // Animal should have the property `age` that's set in the constructor and the method
-// `growOlder` that returns the age.
+// `growOlder` that returns the age. + a year.
 // Cat should have the property `name` that is set in the constructor and the method
 // `meow` that should return the string `<name> meowed!` where `<name>` is the `name`
 // property set on the Cat instance.
 
+class Animal {
+  constructor(options) {
+    this.age = options.age;
+  }
+  growOlder() {
+    return this.age + 1;
+  }
+}
+
+class Cat extends Animal {
+  constructor(options) {
+    super(options);
+    this.name = options.name;
+  }
+  meow() {
+    return `${this.name} meowed!`;
+  }
+}
 
 module.exports = {
   User,