From e0e633462807b69e08dfb5cc7171fcc9294b613f Mon Sep 17 00:00:00 2001
From: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>
Date: Wed, 25 Mar 2020 08:07:13 -0700
Subject: [PATCH] fix(curriculum): Consolidated comments for JavaScript
 Algorithms and Data Structures challenges - part 3 of 4 (#38264)

* fix: remove example code from challenge seed

* fix: remove declaration from solution

* fix: added sum variable back in

* fix: reverted description back to original version

* fix: added examples to description section

* fix: added complete sentence

Co-Authored-By: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>

* fix: corrected typo

Co-Authored-By: Manish Giri <manish.giri.me@gmail.com>

* fix: reverted to original desc with formatted code

* fix: removed unnecessary code example from description section

Co-Authored-By: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>

* fix: failiing test on iterate through array with for loop

* fix: changed to Only change this line

Co-Authored-By: Manish Giri <manish.giri.me@gmail.com>

Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Co-authored-by: Manish Giri <manish.giri.me@gmail.com>
Co-authored-by: moT01 <tmondloch01@gmail.com>
---
 .../access-array-data-with-indexes.english.md |  4 --
 ...operties-to-a-javascript-object.english.md | 24 +++++++-----
 .../appending-variables-to-strings.english.md | 17 ++++++---
 ...ssignment-with-a-returned-value.english.md | 10 -----
 .../build-javascript-objects.english.md       |  4 +-
 ...ting-strings-with-plus-operator.english.md | 16 ++++----
 ...s-with-the-plus-equals-operator.english.md | 12 ++++--
 ...tructing-strings-with-variables.english.md | 13 +++++--
 ...count-backwards-with-a-for-loop.english.md |  9 +----
 .../declare-string-variables.english.md       |  4 --
 ...erties-from-a-javascript-object.english.md | 38 +++++++++++++------
 .../find-the-length-of-a-string.english.md    |  6 ---
 ...om-whole-numbers-within-a-range.english.md | 18 ++-------
 ...es-with-the-assignment-operator.english.md |  3 --
 ...ate-odd-numbers-with-a-for-loop.english.md |  7 ----
 ...hrough-an-array-with-a-for-loop.english.md | 17 +--------
 ...erate-with-javascript-for-loops.english.md |  7 ----
 .../manipulate-arrays-with-pop.english.md     |  5 ---
 .../manipulate-arrays-with-push.english.md    | 17 +++++----
 .../manipulate-arrays-with-shift.english.md   | 14 ++++---
 .../manipulate-arrays-with-unshift.english.md | 16 +++++---
 .../modify-array-data-with-indexes.english.md |  4 --
 ...-one-array-within-another-array.english.md | 11 ++++--
 ...ues-to-functions-with-arguments.english.md |  6 ---
 ...lue-from-a-function-with-return.english.md |  7 ----
 ...ariable-using-javascript-arrays.english.md |  3 --
 ...-value-returned-from-a-function.english.md | 10 ++---
 .../updating-object-properties.english.md     | 10 -----
 ...the-first-character-in-a-string.english.md | 19 +++++-----
 ...-the-last-character-in-a-string.english.md | 21 +++++-----
 ...d-the-nth-character-in-a-string.english.md | 16 +++++---
 ...h-to-last-character-in-a-string.english.md | 18 +++++----
 ...tional-logic-with-if-statements.english.md | 12 ------
 ...recursion-to-create-a-countdown.english.md |  1 -
 ...sable-javascript-with-functions.english.md |  6 ---
 .../es6/import-a-default-export.english.md    |  3 +-
 ...se-javascript-code-using-import.english.md |  3 +-
 ...o-import-everything-from-a-file.english.md |  3 +-
 ...ameter-with-function-parameters.english.md |  1 -
 ...to-convert-strings-to-url-slugs.english.md |  2 -
 ...ts-using-functional-programming.english.md |  9 +----
 ...ternal-dependence-in-a-function.english.md | 13 ++-----
 42 files changed, 176 insertions(+), 263 deletions(-)

diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/access-array-data-with-indexes.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/access-array-data-with-indexes.english.md
index 9bcb9fb675b..ce54e3c5165 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/access-array-data-with-indexes.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/access-array-data-with-indexes.english.md
@@ -47,10 +47,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = [50,60,70];
-var ourData = ourArray[0]; // equals 50
-
 // Setup
 var myArray = [50,60,70];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/add-new-properties-to-a-javascript-object.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/add-new-properties-to-a-javascript-object.english.md
index 36602796ca4..7614aabd1dd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/add-new-properties-to-a-javascript-object.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/add-new-properties-to-a-javascript-object.english.md
@@ -14,6 +14,20 @@ Here's how we would add a <code>"bark"</code> property to <code>ourDog</code>:
 or
 <code>ourDog["bark"] = "bow-wow";</code>
 Now when we evaluate <code>ourDog.bark</code>, we'll get his bark, "bow-wow".
+
+Example:
+
+```js
+var ourDog = {
+  "name": "Camper",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["everything!"]
+};
+
+ourDog.bark = "bow-wow";
+```
+
 </section>
 
 ## Instructions
@@ -41,16 +55,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourDog = {
-  "name": "Camper",
-  "legs": 4,
-  "tails": 1,
-  "friends": ["everything!"]
-};
-
-ourDog.bark = "bow-wow";
-
 // Setup
 var myDog = {
   "name": "Happy Coder",
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/appending-variables-to-strings.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/appending-variables-to-strings.english.md
index b13c41db407..cea20d25069 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/appending-variables-to-strings.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/appending-variables-to-strings.english.md
@@ -9,6 +9,16 @@ forumTopicId: 16656
 ## Description
 <section id='description'>
 Just as we can build a string over multiple lines out of string <dfn>literals</dfn>, we can also append variables to a string using the plus equals (<code>+=</code>) operator.
+
+Example:
+
+```js
+var anAdjective = "awesome!";
+var ourStr = "freeCodeCamp is ";
+ourStr += anAdjective;
+// ourStr is now "freeCodeCamp is awesome!"
+```
+
 </section>
 
 ## Instructions
@@ -36,12 +46,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var anAdjective = "awesome!";
-var ourStr = "freeCodeCamp is ";
-ourStr += anAdjective;
-
-// Only change code below this line
+// Change code below this line
 
 var someAdjective;
 var myStr = "Learning to code is ";
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/assignment-with-a-returned-value.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/assignment-with-a-returned-value.english.md
index a127a9fffee..dacc5212086 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/assignment-with-a-returned-value.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/assignment-with-a-returned-value.english.md
@@ -39,15 +39,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var changed = 0;
-
-function change(num) {
-  return (num + 5) / 3;
-}
-
-changed = change(10);
-
 // Setup
 var processed = 0;
 
@@ -57,7 +48,6 @@ function processArg(num) {
 
 // Only change code below this line
 
-
 ```
 
 </div>
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.english.md
index f88ff6a4656..d4bf60d65c9 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.english.md
@@ -68,10 +68,10 @@ tests:
 
 ```js
 var myDog = {
+// Only change code below this line
 
 
-
-
+// Only change code above this line
 };
 ```
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-plus-operator.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-plus-operator.english.md
index a87e1ecc391..adc9a4fca3d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-plus-operator.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-plus-operator.english.md
@@ -16,6 +16,14 @@ In JavaScript, when the <code>+</code> operator is used with a <code>String</cod
 ```
 
 <strong>Note</strong><br>Watch out for spaces. Concatenation does not add spaces between concatenated strings, so you'll need to add them yourself.
+
+Example:
+
+```js
+var ourStr = "I come first. " + "I come second.";
+// ourStr is "I come first.  I come second."
+```
+
 </section>
 
 ## Instructions
@@ -47,13 +55,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourStr = "I come first. " + "I come second.";
-
-// Only change code below this line
-
-var myStr;
-
+var myStr; // Only change this line
 
 ```
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-the-plus-equals-operator.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-the-plus-equals-operator.english.md
index 5a277068bc0..52cc0f59ece 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-the-plus-equals-operator.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-the-plus-equals-operator.english.md
@@ -10,6 +10,15 @@ forumTopicId: 16803
 <section id='description'>
 We can also use the <code>+=</code> operator to <dfn>concatenate</dfn> a string onto the end of an existing string variable. This can be very helpful to break a long string over several lines.
 <strong>Note</strong><br>Watch out for spaces. Concatenation does not add spaces between concatenated strings, so you'll need to add them yourself.
+
+Example:
+
+```js
+var ourStr = "I come first. ";
+ourStr += "I come second.";
+// ourStr is now "I come first. I come second."
+```
+
 </section>
 
 ## Instructions
@@ -37,9 +46,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourStr = "I come first. ";
-ourStr += "I come second.";
 
 // Only change code below this line
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/constructing-strings-with-variables.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/constructing-strings-with-variables.english.md
index c72ac9574bf..01c2083fb87 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/constructing-strings-with-variables.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/constructing-strings-with-variables.english.md
@@ -9,6 +9,15 @@ forumTopicId: 16805
 ## Description
 <section id='description'>
 Sometimes you will need to build a string, <a href="https://en.wikipedia.org/wiki/Mad_Libs" target="_blank">Mad Libs</a> style. By using the concatenation operator (<code>+</code>), you can insert one or more variables into a string you're building.
+
+Example:
+
+```js
+var ourName = "freeCodeCamp";
+var ourStr = "Hello, our name is " + ourName + ", how are you?";
+// ourStr is now "Hello, our name is freeCodeCamp, how are you?"
+```
+
 </section>
 
 ## Instructions
@@ -36,10 +45,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourName = "freeCodeCamp";
-var ourStr = "Hello, our name is " + ourName + ", how are you?";
-
 // Only change code below this line
 var myName;
 var myStr;
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/count-backwards-with-a-for-loop.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/count-backwards-with-a-for-loop.english.md
index 169504335e5..71efeeeeda7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/count-backwards-with-a-for-loop.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/count-backwards-with-a-for-loop.english.md
@@ -14,7 +14,7 @@ We'll start at <code>i = 10</code> and loop while <code>i &#62; 0</code>. We'll
 
 ```js
 var ourArray = [];
-for (var i=10; i > 0; i-=2) {
+for (var i = 10; i > 0; i -= 2) {
   ourArray.push(i);
 }
 ```
@@ -50,13 +50,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = [];
-
-for (var i = 10; i > 0; i -= 2) {
-  ourArray.push(i);
-}
-
 // Setup
 var myArray = [];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/declare-string-variables.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/declare-string-variables.english.md
index 3d3143b8e82..a44abd5c098 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/declare-string-variables.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/declare-string-variables.english.md
@@ -38,11 +38,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var firstName = "Alan";
-var lastName = "Turing";
 
-// Only change code below this line
 
 
 ```
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/delete-properties-from-a-javascript-object.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/delete-properties-from-a-javascript-object.english.md
index b70e0d0e2c9..5d6a83317ca 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/delete-properties-from-a-javascript-object.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/delete-properties-from-a-javascript-object.english.md
@@ -10,6 +10,33 @@ forumTopicId: 17560
 <section id='description'>
 We can also delete properties from objects like this:
 <code>delete ourDog.bark;</code>
+
+Example:
+
+```js
+var ourDog = {
+  "name": "Camper",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["everything!"],
+  "bark": "bow-wow"
+};
+
+delete ourDog.bark;
+```
+
+After the last line shown above, <code>ourDog</code> looks like:
+
+```js
+{
+  "name": "Camper",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["everything!"]
+}
+*/
+```
+
 </section>
 
 ## Instructions
@@ -37,17 +64,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourDog = {
-  "name": "Camper",
-  "legs": 4,
-  "tails": 1,
-  "friends": ["everything!"],
-  "bark": "bow-wow"
-};
-
-delete ourDog.bark;
-
 // Setup
 var myDog = {
   "name": "Happy Coder",
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/find-the-length-of-a-string.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/find-the-length-of-a-string.english.md
index d71142d81a1..af7d96da6b6 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/find-the-length-of-a-string.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/find-the-length-of-a-string.english.md
@@ -40,12 +40,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var firstNameLength = 0;
-var firstName = "Ada";
-
-firstNameLength = firstName.length;
-
 // Setup
 var lastNameLength = 0;
 var lastName = "Lovelace";
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/generate-random-whole-numbers-within-a-range.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/generate-random-whole-numbers-within-a-range.english.md
index e5862af21d3..655c9806b2d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/generate-random-whole-numbers-within-a-range.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/generate-random-whole-numbers-within-a-range.english.md
@@ -43,23 +43,11 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-function ourRandomRange(ourMin, ourMax) {
-
-  return Math.floor(Math.random() * (ourMax - ourMin + 1)) + ourMin;
-}
-
-ourRandomRange(1, 9);
-
-// Only change code below this line
-
 function randomRange(myMin, myMax) {
-
-  return 0; // Change this line
-
+  // Only change code below this line
+  return 0;
+  // Only change code above this line
 }
-
-var myRandom = randomRange(5, 15);
 ```
 
 </div>
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/initializing-variables-with-the-assignment-operator.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/initializing-variables-with-the-assignment-operator.english.md
index bae80f1f319..8cdbd7a8da1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/initializing-variables-with-the-assignment-operator.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/initializing-variables-with-the-assignment-operator.english.md
@@ -36,10 +36,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourVar = 19;
 
-// Only change code below this line
 
 ```
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-odd-numbers-with-a-for-loop.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-odd-numbers-with-a-for-loop.english.md
index 901f62e1cc1..066c395611c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-odd-numbers-with-a-for-loop.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-odd-numbers-with-a-for-loop.english.md
@@ -47,13 +47,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = [];
-
-for (var i = 0; i < 10; i += 2) {
-  ourArray.push(i);
-}
-
 // Setup
 var myArray = [];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-through-an-array-with-a-for-loop.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-through-an-array-with-a-for-loop.english.md
index 7f8777d73e3..179f5f6addc 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-through-an-array-with-a-for-loop.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-through-an-array-with-a-for-loop.english.md
@@ -35,7 +35,7 @@ tests:
   - text: <code>total</code> should equal 20.
     testString: assert(total === 20);
   - text: You should use a <code>for</code> loop to iterate through <code>myArr</code>.
-    testString: assert(code.match(/for\s*\(/g).length > 1 && code.match(/myArr\s*\[/));
+    testString: assert(/for\s*\(/g.test(code) && /myArr\s*\[/g.test(code));
   - text: You should not attempt to directly assign the value 20 to <code>total</code>.
     testString: assert(!code.replace(/\s/g, '').match(/total[=+-]0*[1-9]+/gm));
 ```
@@ -47,14 +47,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArr = [ 9, 10, 11, 12];
-var ourTotal = 0;
-
-for (var i = 0; i < ourArr.length; i++) {
-  ourTotal += ourArr[i];
-}
-
 // Setup
 var myArr = [ 2, 3, 4, 5, 6];
 
@@ -80,13 +72,6 @@ var myArr = [ 2, 3, 4, 5, 6];
 <section id='solution'>
 
 ```js
-var ourArr = [ 9, 10, 11, 12];
-var ourTotal = 0;
-
-for (var i = 0; i < ourArr.length; i++) {
-  ourTotal += ourArr[i];
-}
-
 var myArr = [ 2, 3, 4, 5, 6];
 var total = 0;
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-with-javascript-for-loops.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-with-javascript-for-loops.english.md
index 5713942f0e0..61869081ea2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-with-javascript-for-loops.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-with-javascript-for-loops.english.md
@@ -52,13 +52,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = [];
-
-for (var i = 0; i < 5; i++) {
-  ourArray.push(i);
-}
-
 // Setup
 var myArray = [];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-pop.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-pop.english.md
index 81ec3f825b3..5a7a14215d6 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-pop.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-pop.english.md
@@ -48,11 +48,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = [1,2,3];
-var removedFromOurArray = ourArray.pop();
-// removedFromOurArray now equals 3, and ourArray now equals [1,2]
-
 // Setup
 var myArray = [["John", 23], ["cat", 2]];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-push.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-push.english.md
index a6aa01015ab..48934342fa3 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-push.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-push.english.md
@@ -11,10 +11,16 @@ forumTopicId: 18237
 An easy way to append data to the end of an array is via the <code>push()</code> function.
 <code>.push()</code> takes one or more <dfn>parameters</dfn> and "pushes" them onto the end of the array.
 
+Examples:
+
 ```js
-var arr = [1,2,3];
-arr.push(4);
-// arr is now [1,2,3,4]
+var arr1 = [1,2,3];
+arr1.push(4);
+// arr1 is now [1,2,3,4]
+
+var arr2 = ["Stimpson", "J", "cat"];
+arr2.push(["happy", "joy"]);
+// arr2 now equals ["Stimpson", "J", "cat", ["happy", "joy"]]
 ```
 
 </section>
@@ -42,11 +48,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = ["Stimpson", "J", "cat"];
-ourArray.push(["happy", "joy"]);
-// ourArray now equals ["Stimpson", "J", "cat", ["happy", "joy"]]
-
 // Setup
 var myArray = [["John", 23], ["cat", 2]];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-shift.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-shift.english.md
index ee1e4a07518..79da8a6a326 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-shift.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-shift.english.md
@@ -10,6 +10,15 @@ forumTopicId: 18238
 <section id='description'>
 <code>pop()</code> always removes the last element of an array. What if you want to remove the first?
 That's where <code>.shift()</code> comes in. It works just like <code>.pop()</code>, except it removes the first element instead of the last.
+
+Example:
+
+```js
+var ourArray = ["Stimpson", "J", ["cat"]];
+var removedFromOurArray = ourArray.shift();
+// removedFromOurArray now equals "Stimpson" and ourArray now equals ["J", ["cat"]].
+```
+
 </section>
 
 ## Instructions
@@ -37,11 +46,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = ["Stimpson", "J", ["cat"]];
-var removedFromOurArray = ourArray.shift();
-// removedFromOurArray now equals "Stimpson" and ourArray now equals ["J", ["cat"]].
-
 // Setup
 var myArray = [["John", 23], ["dog", 3]];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-unshift.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-unshift.english.md
index 22a18a0b858..22f2ebff658 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-unshift.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-unshift.english.md
@@ -10,6 +10,16 @@ forumTopicId: 18239
 <section id='description'>
 Not only can you <code>shift</code> elements off of the beginning of an array, you can also <code>unshift</code> elements to the beginning of an array i.e. add elements in front of the array.
 <code>.unshift()</code> works exactly like <code>.push()</code>, but instead of adding the element at the end of the array, <code>unshift()</code> adds the element at the beginning of the array.
+
+Example:
+
+```js
+var ourArray = ["Stimpson", "J", "cat"];
+ourArray.shift(); // ourArray now equals ["J", "cat"]
+ourArray.unshift("Happy");
+// ourArray now equals ["Happy", "J", "cat"]
+```
+
 </section>
 
 ## Instructions
@@ -35,12 +45,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = ["Stimpson", "J", "cat"];
-ourArray.shift(); // ourArray now equals ["J", "cat"]
-ourArray.unshift("Happy");
-// ourArray now equals ["Happy", "J", "cat"]
-
 // Setup
 var myArray = [["John", 23], ["dog", 3]];
 myArray.shift();
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/modify-array-data-with-indexes.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/modify-array-data-with-indexes.english.md
index 697c3b28e23..f29fe291ceb 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/modify-array-data-with-indexes.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/modify-array-data-with-indexes.english.md
@@ -44,10 +44,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = [18,64,99];
-ourArray[1] = 45; // ourArray now equals [18,45,99].
-
 // Setup
 var myArray = [18,64,99];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/nest-one-array-within-another-array.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/nest-one-array-within-another-array.english.md
index e8b4fce925e..241ccaf773e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/nest-one-array-within-another-array.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/nest-one-array-within-another-array.english.md
@@ -8,7 +8,13 @@ forumTopicId: 18247
 
 ## Description
 <section id='description'>
-You can also nest arrays within other arrays, like this: <code>[["Bulls", 23], ["White Sox", 45]]</code>. This is also called a <dfn>multi-dimensional array<dfn>.
+You can also nest arrays within other arrays, like below:
+
+```js
+[["Bulls", 23], ["White Sox", 45]]
+```
+
+This is also called a <dfn>multi-dimensional array<dfn>.
 </section>
 
 ## Instructions
@@ -34,9 +40,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = [["the universe", 42], ["everything", 101010]];
-
 // Only change code below this line
 var myArray = [];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/passing-values-to-functions-with-arguments.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/passing-values-to-functions-with-arguments.english.md
index edc53662d26..36097d5845f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/passing-values-to-functions-with-arguments.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/passing-values-to-functions-with-arguments.english.md
@@ -51,13 +51,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-function ourFunctionWithArgs(a, b) {
-  console.log(a - b);
-}
-ourFunctionWithArgs(10, 5); // Outputs 5
 
-// Only change code below this line
 
 
 ```
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/return-a-value-from-a-function-with-return.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/return-a-value-from-a-function-with-return.english.md
index 5a422736f69..5bac9966f69 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/return-a-value-from-a-function-with-return.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/return-a-value-from-a-function-with-return.english.md
@@ -50,16 +50,9 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-function minusSeven(num) {
-  return num - 7;
-}
-
-// Only change code below this line
 
 
 
-console.log(minusSeven(10));
 ```
 
 </div>
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/store-multiple-values-in-one-variable-using-javascript-arrays.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/store-multiple-values-in-one-variable-using-javascript-arrays.english.md
index 35e5e668865..b875852fc69 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/store-multiple-values-in-one-variable-using-javascript-arrays.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/store-multiple-values-in-one-variable-using-javascript-arrays.english.md
@@ -41,9 +41,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourArray = ["John", 23];
-
 // Only change code below this line
 var myArray = [];
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/understanding-undefined-value-returned-from-a-function.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/understanding-undefined-value-returned-from-a-function.english.md
index 67187f61fe5..da06cb5d05e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/understanding-undefined-value-returned-from-a-function.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/understanding-undefined-value-returned-from-a-function.english.md
@@ -51,15 +51,18 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
+// Setup
 var sum = 0;
+
 function addThree() {
   sum = sum + 3;
 }
 
 // Only change code below this line
 
+
 // Only change code above this line
+
 addThree();
 addFive();
 ```
@@ -72,19 +75,16 @@ addFive();
 
 
 ```js
-// Example
 var sum = 0;
+
 function addThree() {
   sum = sum + 3;
 }
 
-// Only change code below this line
-
 function addFive() {
   sum = sum + 5;
 }
 
-// Only change code above this line
 addThree();
 addFive();
 ```
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/updating-object-properties.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/updating-object-properties.english.md
index 0cf13053861..eec44540dfd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/updating-object-properties.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/updating-object-properties.english.md
@@ -51,16 +51,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourDog = {
-  "name": "Camper",
-  "legs": 4,
-  "tails": 1,
-  "friends": ["everything!"]
-};
-
-ourDog.name = "Happy Camper";
-
 // Setup
 var myDog = {
   "name": "Coder",
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-first-character-in-a-string.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-first-character-in-a-string.english.md
index 52a73ceee5a..61f2352ef4a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-first-character-in-a-string.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-first-character-in-a-string.english.md
@@ -11,12 +11,20 @@ forumTopicId: 18341
 <dfn>Bracket notation</dfn> is a way to get a character at a specific <code>index</code> within a string.
 Most modern programming languages, like JavaScript, don't start counting at 1 like humans do. They start at 0. This is referred to as <dfn>Zero-based</dfn> indexing.
 For example, the character at index 0 in the word "Charles" is "C". So if <code>var firstName = "Charles"</code>, you can get the value of the first letter of the string by using <code>firstName[0]</code>.
+
+Example:
+
+```js
+var firstName = "Charles";
+var firstLetter = firstName[0]; // firstLetter is "C"
+```
+
 </section>
 
 ## Instructions
 <section id='instructions'>
 Use bracket notation to find the first character in the <code>lastName</code> variable and assign it to <code>firstLetterOfLastName</code>.
-<strong>Hint</strong><br>Try looking at the <code>firstLetterOfFirstName</code> variable declaration if you get stuck.
+<strong>Hint: </strong> Try looking at the example above if you get stuck.
 </section>
 
 ## Tests
@@ -39,19 +47,12 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var firstLetterOfFirstName = "";
-var firstName = "Ada";
-
-firstLetterOfFirstName = firstName[0];
-
 // Setup
 var firstLetterOfLastName = "";
 var lastName = "Lovelace";
 
 // Only change code below this line
-firstLetterOfLastName = lastName;
-
+firstLetterOfLastName = lastName; // Change this line
 
 ```
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-last-character-in-a-string.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-last-character-in-a-string.english.md
index 9d443a9fb66..90d4148343e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-last-character-in-a-string.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-last-character-in-a-string.english.md
@@ -10,12 +10,20 @@ forumTopicId: 18342
 <section id='description'>
 In order to get the last letter of a string, you can subtract one from the string's length.
 For example, if <code>var firstName = "Charles"</code>, you can get the value of the last letter of the string by using <code>firstName[firstName.length - 1]</code>.
+
+Example:
+
+```js
+var firstName = "Charles";
+var lastLetter = firstName[firstName.length - 1]; // lastLetter is "s"
+```
+
 </section>
 
 ## Instructions
 <section id='instructions'>
 Use <dfn>bracket notation</dfn> to find the last character in the <code>lastName</code> variable.
-<strong>Hint</strong><br>Try looking at the <code>lastLetterOfFirstName</code> variable declaration if you get stuck.
+<strong>Hint: </strong> Try looking at the example above if you get stuck.
 </section>
 
 ## Tests
@@ -26,7 +34,7 @@ tests:
   - text: <code>lastLetterOfLastName</code> should be "e".
     testString: assert(lastLetterOfLastName === "e");
   - text: You should use <code>.length</code> to get the last letter.
-    testString: assert(code.match(/\.length/g).length === 2);
+    testString: assert(code.match(/\.length/g).length > 0);
 
 ```
 
@@ -38,15 +46,11 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var firstName = "Ada";
-var lastLetterOfFirstName = firstName[firstName.length - 1];
-
 // Setup
 var lastName = "Lovelace";
 
 // Only change code below this line
-var lastLetterOfLastName = lastName;
+var lastLetterOfLastName = lastName; // Change this line
 
 
 ```
@@ -70,9 +74,6 @@ var lastLetterOfLastName = lastName;
 
 
 ```js
-var firstName = "Ada";
-var lastLetterOfFirstName = firstName[firstName.length - 1];
-
 var lastName = "Lovelace";
 var lastLetterOfLastName = lastName[lastName.length - 1];
 ```
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-nth-character-in-a-string.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-nth-character-in-a-string.english.md
index 6a6f40f9303..e412e1baf4d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-nth-character-in-a-string.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-nth-character-in-a-string.english.md
@@ -10,12 +10,20 @@ forumTopicId: 18343
 <section id='description'>
 You can also use <dfn>bracket notation</dfn> to get the character at other positions within a string.
 Remember that computers start counting at <code>0</code>, so the first character is actually the zeroth character.
+
+Example:
+
+```js
+var firstName = "Ada";
+var secondLetterOfFirstName = firstName[1]; // secondLetterOfFirstName is "d"
+```
+
 </section>
 
 ## Instructions
 <section id='instructions'>
 Let's try to set <code>thirdLetterOfLastName</code> to equal the third letter of the <code>lastName</code> variable using bracket notation.
-<strong>Hint</strong><br>Try looking at the <code>secondLetterOfFirstName</code> variable declaration if you get stuck.
+<strong>Hint: </strong> Try looking at the example above if you get stuck.
 </section>
 
 ## Tests
@@ -38,15 +46,11 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var firstName = "Ada";
-var secondLetterOfFirstName = firstName[1];
-
 // Setup
 var lastName = "Lovelace";
 
 // Only change code below this line
-var thirdLetterOfLastName = lastName;
+var thirdLetterOfLastName = lastName; // Change this line
 
 
 ```
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-nth-to-last-character-in-a-string.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-nth-to-last-character-in-a-string.english.md
index f987b861c7a..6ab36629d0a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-nth-to-last-character-in-a-string.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-nth-to-last-character-in-a-string.english.md
@@ -10,12 +10,20 @@ forumTopicId: 18344
 <section id='description'>
 You can use the same principle we just used to retrieve the last character in a string to retrieve the Nth-to-last character.
 For example, you can get the value of the third-to-last letter of the <code>var firstName = "Charles"</code> string by using <code>firstName[firstName.length - 3]</code>
+
+Example:
+
+```js
+var firstName = "Charles";
+var thirdToLastLetter = firstName[firstName.length - 3]; // thirdToLastLetter is "l"
+```
+
 </section>
 
 ## Instructions
 <section id='instructions'>
 Use <dfn>bracket notation</dfn> to find the second-to-last character in the <code>lastName</code> string.
-<strong>Hint</strong><br>Try looking at the <code>thirdToLastLetterOfFirstName</code> variable declaration if you get stuck.
+<strong>Hint: </strong> Try looking at the example above if you get stuck.
 </section>
 
 ## Tests
@@ -26,7 +34,7 @@ tests:
   - text: <code>secondToLastLetterOfLastName</code> should be "c".
     testString: assert(secondToLastLetterOfLastName === 'c');
   - text: You should use <code>.length</code> to get the second last letter.
-    testString: assert(code.match(/\.length/g).length === 2);
+    testString: assert(code.match(/\.length/g).length > 0);
 
 ```
 
@@ -38,15 +46,11 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var firstName = "Ada";
-var thirdToLastLetterOfFirstName = firstName[firstName.length - 3];
-
 // Setup
 var lastName = "Lovelace";
 
 // Only change code below this line
-var secondToLastLetterOfLastName = lastName;
+var secondToLastLetterOfLastName = lastName; // Change this line
 
 
 ```
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-conditional-logic-with-if-statements.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-conditional-logic-with-if-statements.english.md
index 532fde49895..a246f88fde3 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-conditional-logic-with-if-statements.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-conditional-logic-with-if-statements.english.md
@@ -59,17 +59,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-function ourTrueOrFalse(isItTrue) {
-  if (isItTrue) {
-    return "Yes, it's true";
-  }
-  return "No, it's false";
-}
-
-// Setup
 function trueOrFalse(wasThatTrue) {
-
   // Only change code below this line
 
 
@@ -77,8 +67,6 @@ function trueOrFalse(wasThatTrue) {
   // Only change code above this line
 
 }
-
-trueOrFalse(true);
 ```
 
 </div>
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-recursion-to-create-a-countdown.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-recursion-to-create-a-countdown.english.md
index 6d9ea36b69c..067beecc4f2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-recursion-to-create-a-countdown.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-recursion-to-create-a-countdown.english.md
@@ -72,7 +72,6 @@ function countdown(n){
   return;
 }
 // Only change code above this line
-console.log(countdown(5)); // [5, 4, 3, 2, 1]
 ```
 
 </div>
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/write-reusable-javascript-with-functions.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/write-reusable-javascript-with-functions.english.md
index 0f90f62fff0..1128e6584ec 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/write-reusable-javascript-with-functions.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/write-reusable-javascript-with-functions.english.md
@@ -49,14 +49,8 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-function ourReusableFunction() {
-  console.log("Heyya, World");
-}
 
-ourReusableFunction();
 
-// Only change code below this line
 
 ```
 
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/import-a-default-export.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/import-a-default-export.english.md
index afea536c15a..cf04c52cf81 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/import-a-default-export.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/import-a-default-export.english.md
@@ -38,7 +38,7 @@ tests:
 
 ```js
   
-// add code above this line
+// Only change code above this line
 
 subtract(7,4);
 ```
@@ -51,7 +51,6 @@ subtract(7,4);
 
 ```js
 import subtract from "./math_functions.js";
-// add code above this line
 
 subtract(7,4);
 ```
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/reuse-javascript-code-using-import.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/reuse-javascript-code-using-import.english.md
index ae953db8165..f4a0d68c0a5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/reuse-javascript-code-using-import.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/reuse-javascript-code-using-import.english.md
@@ -47,7 +47,7 @@ tests:
 
 ```js
   
-// add code above this line
+// Only change code above this line
 
 uppercaseString("hello");
 lowercaseString("WORLD!");
@@ -61,7 +61,6 @@ lowercaseString("WORLD!");
 
 ```js
 import { uppercaseString, lowercaseString } from './string_functions.js';
-// add code above this line
 
 uppercaseString("hello");
 lowercaseString("WORLD!");
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use--to-import-everything-from-a-file.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use--to-import-everything-from-a-file.english.md
index 06745281d56..ad2cccbd6a4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use--to-import-everything-from-a-file.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use--to-import-everything-from-a-file.english.md
@@ -44,7 +44,7 @@ tests:
 
 ```js
 
-// add code above this line
+// Only change code above this line
 
 stringFunctions.uppercaseString("hello");
 stringFunctions.lowercaseString("WORLD!");
@@ -58,7 +58,6 @@ stringFunctions.lowercaseString("WORLD!");
 
 ```js
 import * as stringFunctions from "./string_functions.js";
-// add code above this line
 
 stringFunctions.uppercaseString("hello");
 stringFunctions.lowercaseString("WORLD!");
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-the-rest-parameter-with-function-parameters.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-the-rest-parameter-with-function-parameters.english.md
index 3271a2a3a67..5d003a699a6 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-the-rest-parameter-with-function-parameters.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-the-rest-parameter-with-function-parameters.english.md
@@ -56,7 +56,6 @@ const sum = (x, y, z) => {
   const args = [x, y, z];
   return args.reduce((a, b) => a + b, 0);
 }
-console.log(sum(1, 2, 3)); // 6
 ```
 
 </div>
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/apply-functional-programming-to-convert-strings-to-url-slugs.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/apply-functional-programming-to-convert-strings-to-url-slugs.english.md
index 5f3699fb79b..3bcebd0a81f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/apply-functional-programming-to-convert-strings-to-url-slugs.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/apply-functional-programming-to-convert-strings-to-url-slugs.english.md
@@ -58,8 +58,6 @@ function urlSlug(title) {
 
 }
 // Only change code above this line
-
-var winterComing = urlSlug(globalTitle); // Should be "winter-is-coming"
 ```
 
 </div>
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/avoid-mutations-and-side-effects-using-functional-programming.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/avoid-mutations-and-side-effects-using-functional-programming.english.md
index 59baf10d099..2203ac36386 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/avoid-mutations-and-side-effects-using-functional-programming.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/avoid-mutations-and-side-effects-using-functional-programming.english.md
@@ -25,10 +25,10 @@ Fill in the code for the function <code>incrementer</code> so it returns the val
 
 ```yml
 tests:
-  - text: Your function <code>incrementer</code> should not change the value of <code>fixedValue</code>.
+  - text: Your function <code>incrementer</code> should not change the value of <code>fixedValue</code> (which is <code>4</code>).
     testString: assert(fixedValue === 4);
   - text: Your <code>incrementer</code> function should return a value that is one larger than the <code>fixedValue</code> value.
-    testString: assert(newValue === 5);
+    testString: const newValue = incrementer(); assert(newValue === 5);
 
 ```
 
@@ -49,9 +49,6 @@ function incrementer () {
 
   // Only change code above this line
 }
-
-var newValue = incrementer(); // Should equal 5
-console.log(fixedValue); // Should print 4
 ```
 
 </div>
@@ -69,8 +66,6 @@ var fixedValue = 4
 function incrementer() {
   return fixedValue + 1
 }
-
-var newValue = incrementer(); // Should equal 5
 ```
 
 </section>
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/pass-arguments-to-avoid-external-dependence-in-a-function.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/pass-arguments-to-avoid-external-dependence-in-a-function.english.md
index e1412c8116c..de1ee6d11a9 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/pass-arguments-to-avoid-external-dependence-in-a-function.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/pass-arguments-to-avoid-external-dependence-in-a-function.english.md
@@ -26,12 +26,12 @@ Write the <code>incrementer</code> function so it takes an argument, and then in
 
 ```yml
 tests:
-  - text: Your function <code>incrementer</code> should not change the value of <code>fixedValue</code>.
+  - text: Your function <code>incrementer</code> should not change the value of <code>fixedValue</code> (which is <code>4</code>).
     testString: assert(fixedValue === 4);
-  - text: Your <code>incrementer</code> function should take a parameter.
+  - text: Your <code>incrementer</code> function should take an argument.
     testString: assert(incrementer.length === 1);
   - text: Your <code>incrementer</code> function should return a value that is one larger than the <code>fixedValue</code> value.
-    testString: assert(newValue === 5);
+    testString: const newValue = incrementer(fixedValue); assert(newValue === 5);
 
 ```
 
@@ -52,9 +52,6 @@ function incrementer () {
 
   // Only change code above this line
 }
-
-var newValue = incrementer(fixedValue); // Should equal 5
-console.log(fixedValue); // Should print 4
 ```
 
 </div>
@@ -67,13 +64,9 @@ console.log(fixedValue); // Should print 4
 <section id='solution'>
 
 ```js
-// The global variable
 var fixedValue = 4;
 
 const incrementer = val => val + 1;
-
-var newValue = incrementer(fixedValue); // Should equal 5
-console.log(fixedValue); // Should print 4
 ```
 
 </section>