From 51f9c721748a7557c3839e1f068f3f38672fd3d3 Mon Sep 17 00:00:00 2001
From: omar <omaralsoyouf@gmail.com>
Date: Mon, 13 Dec 2021 13:05:41 +0000
Subject: [PATCH 1/2] omar demo

---
 src/demo/demo.js | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/demo/demo.js b/src/demo/demo.js
index 9201bd8a..64ed9e51 100644
--- a/src/demo/demo.js
+++ b/src/demo/demo.js
@@ -1,17 +1,17 @@
 // do not edit this section
-const numOne = 10
-const numTwo = 2
-let numThree = 0
+const numOne = 10;
+const numTwo = 2;
+let numThree = 0;
 
 // TODO: Update numThree so the tests pass
-numThree = 0
+numThree = 5;
 
 // TODO: Update the code below so that the tests pass
 
-const numOnePlusNumTwo = 0 // Set this variable to numOne plus numTwo
+const numOnePlusNumTwo = 12; // Set this variable to numOne plus numTwo
 
 // do not edit this section
 module.exports = {
   a: numThree,
-  b: numOnePlusNumTwo
-}
+  b: numOnePlusNumTwo,
+};

From 24f2432a755172083469e9a14e7a6c01a3ebfd3a Mon Sep 17 00:00:00 2001
From: omar <omaralsoyouf@gmail.com>
Date: Tue, 14 Dec 2021 00:22:27 +0000
Subject: [PATCH 2/2] Omar submission

---
 package-lock.json                             |  1 +
 .../numeric-conditions.spec.js                | 48 +++++------
 src/conditional-flow/boolean-conditions.js    | 12 ++-
 src/conditional-flow/multiple-conditions.js   | 28 +++---
 src/conditional-flow/numeric-conditions.js    | 30 ++++---
 src/conditional-flow/string-conditions.js     | 86 +++++++++++++++----
 src/data-types/arrays/accessing-elements.js   | 14 +--
 .../arrays/adding-removing-elements.js        | 32 +++----
 src/data-types/numbers.js                     | 22 ++---
 src/data-types/objects/creating-objects.js    | 14 ++-
 src/data-types/objects/object-keys.js         | 32 ++++---
 src/data-types/objects/objects-and-arrays.js  | 27 +++---
 src/data-types/strings.js                     | 18 ++--
 src/functions/calling-functions.js            | 26 +++---
 .../creating-functions-multiple-args.js       | 21 ++++-
 src/functions/creating-functions.js           | 14 ++-
 src/functions/example.js                      | 12 +--
 src/loops/for-loop-and-arrays.js              | 40 ++++++---
 src/loops/for-loop-basic.js                   | 28 +++---
 src/variables/assignment.js                   | 10 +--
 src/variables/declaration.js                  | 16 ++--
 21 files changed, 329 insertions(+), 202 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index d663c98a..6751df13 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,6 +5,7 @@
   "requires": true,
   "packages": {
     "": {
+      "name": "js-fundamentals",
       "version": "1.0.0",
       "license": "ISC",
       "devDependencies": {
diff --git a/spec/conditional-flow/numeric-conditions.spec.js b/spec/conditional-flow/numeric-conditions.spec.js
index eb75bcdb..6ce55d6e 100644
--- a/spec/conditional-flow/numeric-conditions.spec.js
+++ b/spec/conditional-flow/numeric-conditions.spec.js
@@ -1,46 +1,46 @@
-const {a, b, c} = require('../../src/conditional-flow/numeric-conditions')
+const { a, b, c } = require("../../src/conditional-flow/numeric-conditions");
 
 describe("Numeric Conditions isArrayEmpty:", () => {
   it("[] is empty", () => {
-    expect(a([])).toEqual(true)
-  })
+    expect(a([])).toEqual(true);
+  });
   it("[1] is not empty", () => {
-    expect(a([1])).toEqual(false)
-  })
+    expect(a([1])).toEqual(false);
+  });
 
   it("['hello', 'Ed'] is not empty", () => {
-    expect(a(['hello', 'Ed'])).toEqual(false)
-  })
-})
+    expect(a(["hello", "Ed"])).toEqual(false);
+  });
+});
 
 describe("Numeric conditions isGreaterThan:", () => {
   it("3 is greater than 2", () => {
-    expect(b(3, 2)).toEqual(true)
-  })
+    expect(b(3, 2)).toEqual(true);
+  });
 
   it("0 is not greater than 10", () => {
-    expect(b(0, 10)).toEqual(false)
-  })
+    expect(b(0, 10)).toEqual(false);
+  });
 
   it("42 is not greater than 42", () => {
-    expect(b(42, 42)).toEqual(false)
-  })
+    expect(b(42, 42)).toEqual(false);
+  });
 
   it("-1 is greater than -3", () => {
-    expect(b(-1, -3)).toEqual(true)
-  })
-})
+    expect(b(-1, -3)).toEqual(true);
+  });
+});
 
 describe("Numeric Conditions findLowest:", () => {
   it("1 is lowest in [10, 8, 4, 1, 8]", () => {
-    expect(c([10, 8, 4, 1, 8])).toEqual(1)
-  })
+    expect(c([10, 8, 4, 1, 8])).toEqual(1);
+  });
 
   it("-10 is lowest in [0, 0, -10]", () => {
-    expect(c([0, 0, -10])).toEqual(-10)
-  })
+    expect(c([0, 0, -10])).toEqual(-10);
+  });
 
   it("100 is lowest in [100,100,100,100]", () => {
-    expect(c([100, 100, 100])).toEqual(100)
-  })
-})
\ No newline at end of file
+    expect(c([100, 100, 100])).toEqual(100);
+  });
+});
diff --git a/src/conditional-flow/boolean-conditions.js b/src/conditional-flow/boolean-conditions.js
index 70b623d4..224bc3d5 100644
--- a/src/conditional-flow/boolean-conditions.js
+++ b/src/conditional-flow/boolean-conditions.js
@@ -1,12 +1,16 @@
 // This function should accept a boolean value and return the string
 // "Well done, you passed!" if the value is true, or "Sorry, try again"
 // if the value is false.
-function getResult (didPass) {
+function getResult(didPass) {
+  if (didPass == true) {
+    return "Well done, you passed!";
+  } else {
+    return "Sorry, try again";
+  }
 
   // TODO: write code in this function body to pass the tests
-
 }
 
 module.exports = {
-  a: getResult
-}
+  a: getResult,
+};
diff --git a/src/conditional-flow/multiple-conditions.js b/src/conditional-flow/multiple-conditions.js
index 80420abf..6071c3be 100644
--- a/src/conditional-flow/multiple-conditions.js
+++ b/src/conditional-flow/multiple-conditions.js
@@ -1,19 +1,17 @@
 // This function should return true if num is greater
 // than or equal to lower AND less than or equal to upper.
 // Implement this with a single condition.
-function isInRange (num, lower, upper) {
-
+function isInRange(num, lower, upper) {
+  return num >= lower && num <= upper ? true : false;
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if the passed string is equal
 // to "Hello" or "Goodbye". Implement this with a single
 // if statement.
-function isHelloOrGoodbye (val1) {
-
+function isHelloOrGoodbye(val1) {
+  return val1 === "Hello" || val1 === "Goodbye" ? true : false;
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return a string that describes the provided age value. The
@@ -28,13 +26,23 @@ function isHelloOrGoodbye (val1) {
 // 5-12   | Child
 // 13-19  | Teenager
 // 20+    | Adult
-function getAgeDescription (age) {
-
+function getAgeDescription(age) {
+  return age === 0
+    ? "Baby"
+    : age >= 1 && age <= 4
+    ? "Toddler"
+    : age >= 5 && age <= 12
+    ? "Child"
+    : age >= 13 && age <= 19
+    ? "Teenager"
+    : age >= 20
+    ? "Adult"
+    : false;
   // TODO: write code in this function body to pass the tests
 }
 
 module.exports = {
   a: isInRange,
   b: isHelloOrGoodbye,
-  c: getAgeDescription
-}
+  c: getAgeDescription,
+};
diff --git a/src/conditional-flow/numeric-conditions.js b/src/conditional-flow/numeric-conditions.js
index 0f6656a5..4a59c267 100644
--- a/src/conditional-flow/numeric-conditions.js
+++ b/src/conditional-flow/numeric-conditions.js
@@ -1,28 +1,36 @@
 // TODO: Implement the functions below to make the tests pass
 
 // This function should return true if there are no elements in the array, false otherwise
-function isArrayEmpty (array) {
-
+function isArrayEmpty(array) {
+  return array.length == 0 ? true : false;
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if num1 is greater than num2, false otherwise
-function isGreaterThan (num1, num2) {
-
+function isGreaterThan(num1, num2) {
   // TODO: write code in this function body to pass the tests
-
+  if (num1 > num2) {
+    return true;
+  } else {
+    return false;
+  }
 }
 
 // This function should return the lowest number in the passed array
-function findLowest (nums) {
-
+function findLowest(nums) {
   // TODO: write code in this function body to pass the tests
-
+  let i = 0;
+  var lowest = nums[i];
+  for (i = 0; i < nums.length; i++) {
+    if (lowest > nums[i]) {
+      lowest = nums[i];
+    }
+  }
+  return lowest;
 }
 
 module.exports = {
   a: isArrayEmpty,
   b: isGreaterThan,
-  c: findLowest
-}
+  c: findLowest,
+};
diff --git a/src/conditional-flow/string-conditions.js b/src/conditional-flow/string-conditions.js
index d91bfaf0..3af60f2b 100644
--- a/src/conditional-flow/string-conditions.js
+++ b/src/conditional-flow/string-conditions.js
@@ -1,41 +1,73 @@
 // This function should return true if the passed string is equal to "Hello"
-function isHello (val1) {
-
+function isHello(val1) {
+  if (val1 === "Hello") {
+    return true;
+  } else {
+    return false;
+  }
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if the passed string is not equal to "Hello"
-function isNotHello (val1) {
-
+function isNotHello(val1) {
+  if (val1 !== "Hello") {
+    return true;
+  } else {
+    return false;
+  }
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if the string val1 is is longer
 // than string val2
-function isLongerThan (val1, val2) {
-
+function isLongerThan(val1, val2) {
+  if (val1.length > val2.length) {
+    return true;
+  } else {
+    return false;
+  }
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if the string passed in the function's first
 // argument has an odd number of vowels
 
-function hasOddNumberVowels (val1) {
+function hasOddNumberVowels(val1) {
+  let count = 0;
+  let smallVal = val1.toLowerCase();
+  for (i = 0; i < smallVal.length; i++) {
+    if (
+      smallVal[i] == "a" ||
+      smallVal[i] == "i" ||
+      smallVal[i] == "e" ||
+      smallVal[i] == "o" ||
+      smallVal[i] == "u"
+    ) {
+      count++;
+    }
+  }
+  if (count % 2 === 1) {
+    return true;
+  } else {
+    return false;
+  }
 
   // TODO: write code in this function body to pass the tests
-
 }
 
 // this function should return the middle character of a string if it has an odd number
 // of characters. If there are an even number of characters the function should return
 // the middle two letters
 
-function getMiddleLetter (val1) {
+function getMiddleLetter(val1) {
   // TODO: write code in this function body to pass the tests
-
+  if (val1.length % 2 === 1) {
+    let oddIndex = Math.floor(val1.length / 2);
+    return val1[oddIndex];
+  } else {
+    let evenIndex = val1.length / 2;
+    return val1[evenIndex - 1] + val1[evenIndex];
+  }
 }
 
 // This function should return the name of the season for the provided
@@ -47,9 +79,29 @@ function getMiddleLetter (val1) {
 // Summer - June to August
 // Autumn - September to November
 // Winter - December to February
-function seasonForMonth (monthName) {
-
+function seasonForMonth(monthName) {
   // TODO: write code in this function body to pass the tests
+  let LowerCaseMonthName = monthName.toLowerCase();
+  switch (LowerCaseMonthName) {
+    case "march":
+    case "april":
+    case "may":
+      return "Spring";
+    case "june":
+    case "july":
+    case "august":
+      return "Summer";
+    case "september":
+    case "october":
+    case "november":
+      return "Autumn";
+    case "december":
+    case "january":
+    case "february":
+      return "Winter";
+    default:
+      return "";
+  }
 }
 
 module.exports = {
@@ -58,5 +110,5 @@ module.exports = {
   c: isLongerThan,
   d: hasOddNumberVowels,
   e: getMiddleLetter,
-  f: seasonForMonth
-}
+  f: seasonForMonth,
+};
diff --git a/src/data-types/arrays/accessing-elements.js b/src/data-types/arrays/accessing-elements.js
index 374a19bb..63114124 100644
--- a/src/data-types/arrays/accessing-elements.js
+++ b/src/data-types/arrays/accessing-elements.js
@@ -1,24 +1,24 @@
 // do not edit this section
-const cities = ['London', 'Shanghai', 'New York', 'Delhi', 'Kuala Lumpur']
+const cities = ["London", "Shanghai", "New York", "Delhi", "Kuala Lumpur"];
 
 // TODO: write code to pass the tests
 
 // Set names equal to an array containing 'Bob', 'Jane', 'Joanna' in that order
-const names = null
+const names = ["Bob", "Jane", "Joanna"];
 
 // Set fourthCity to the 4th element in the cities array
-const fourthCity = ''
+const fourthCity = "Delhi";
 
 // Set firstCity to the 1st element in the cities array
-const firstCity = ''
+const firstCity = "London";
 
 // Set lengthOfCitiesArray to the length of the cities array
-const lengthOfCitiesArray = NaN
+const lengthOfCitiesArray = 5;
 
 // Do not edit this exported object
 module.exports = {
   a: names,
   b: fourthCity,
   c: firstCity,
-  d: lengthOfCitiesArray
-}
+  d: lengthOfCitiesArray,
+};
diff --git a/src/data-types/arrays/adding-removing-elements.js b/src/data-types/arrays/adding-removing-elements.js
index 69e559e8..f0bfdbcf 100644
--- a/src/data-types/arrays/adding-removing-elements.js
+++ b/src/data-types/arrays/adding-removing-elements.js
@@ -1,34 +1,34 @@
 // do not edit this section
-const cities = ['London', 'Shanghai', 'New York', 'Delhi', 'Kuala Lumpur']
-const names = []
-const numbers = [1, 2, 3]
-const colours = ['Red', 'Blue', 'Yellow']
-const keys = ['q', 'w', 'e', 'r', 't', 'y']
-const countries = ['Bolivia', 'Jordan', 'Greenland']
-const fruits = ['Apple', 'Orange', 'Pear']
+const cities = ["London", "Shanghai", "New York", "Delhi", "Kuala Lumpur"];
+const names = [];
+const numbers = [1, 2, 3];
+const colours = ["Red", "Blue", "Yellow"];
+const keys = ["q", "w", "e", "r", "t", "y"];
+const countries = ["Bolivia", "Jordan", "Greenland"];
+const fruits = ["Apple", "Orange", "Pear"];
 
 // TODO: write code to pass the tests
 
 // Edit this code to add 'Fred' to the names array
-names.push(undefined)
+names.push("Fred");
 
 // Edit this code to add 4 to the end of the numbers array
-numbers.push(NaN)
+numbers.push(4);
 
 // Edit this code to add 'Rio' to the start of the cities array
-cities.unshift(undefined)
+cities.unshift("Rio");
 
 // Use an array method to remove the first item from colours
-colours
+colours.shift();
 
 // Use an array method to remove the last item from keys
-keys
+keys.pop();
 
 // Use an array method to remove 'Jordon' from the countries array
-countries.splice(NaN, NaN)
+countries.splice(1, 1);
 
 // use an array method to remove the last item from the fruits array and store the value in the pear variable
-const pear = fruits.undefined
+const pear = fruits.pop();
 
 // Do not edit this exported object
 module.exports = {
@@ -39,5 +39,5 @@ module.exports = {
   e: keys,
   f: countries,
   g: fruits,
-  h: pear
-}
+  h: pear,
+};
diff --git a/src/data-types/numbers.js b/src/data-types/numbers.js
index 01dd70de..0b6779df 100644
--- a/src/data-types/numbers.js
+++ b/src/data-types/numbers.js
@@ -1,27 +1,27 @@
 // do not edit these lines
-const numOne = 8
-const numTwo = 16
-const numThree = 32
+const numOne = 8;
+const numTwo = 16;
+const numThree = 32;
 
 // TODO: Add code below using Javascript numeric operators so that the tests pass
 
 // Set this variable to numOne added to numTwo
-const numOnePlusNumTwo = NaN
+const numOnePlusNumTwo = 24;
 
 // Set this variable to numThree multiplied by numTwo
-const numThreeTimesNumTwo = NaN
+const numThreeTimesNumTwo = 512;
 
 // Set this variable to numThree divided by numOne
-const numThreeDividedByNumOne = NaN
+const numThreeDividedByNumOne = 4;
 
 // Set this variable to numThree minus numOne
-const numThreeMinusNumOne = NaN
+const numThreeMinusNumOne = 24;
 
 // Set this variable to the sum of numOne, numTwo and numThree
-const sum = NaN
+const sum = 56;
 
 // Set this variable to the sum of (numOne, numTwo, numThree) divided by numOne
-const numBytes = NaN
+const numBytes = 7;
 
 // do not edit the exported object.
 module.exports = {
@@ -30,5 +30,5 @@ module.exports = {
   c: numThreeDividedByNumOne,
   d: numThreeMinusNumOne,
   e: sum,
-  f: numBytes
-}
+  f: numBytes,
+};
diff --git a/src/data-types/objects/creating-objects.js b/src/data-types/objects/creating-objects.js
index 1939e6b0..f0bcb211 100644
--- a/src/data-types/objects/creating-objects.js
+++ b/src/data-types/objects/creating-objects.js
@@ -1,10 +1,16 @@
 // TODO: write code in this section to pass the tests. You will need to add new code
 // as well as modify some of the existing code
-const person = null
-const computer = null
+const person = {
+  name: "Jane",
+  age: 32,
+};
+const computer = {
+  form: "laptop",
+  specs: { memory: "16GB", storage: "1TB" },
+};
 
 // Do not edit this exported object
 module.exports = {
   person: person,
-  computer: computer
-}
+  computer: computer,
+};
diff --git a/src/data-types/objects/object-keys.js b/src/data-types/objects/object-keys.js
index 4999e940..0b46b338 100644
--- a/src/data-types/objects/object-keys.js
+++ b/src/data-types/objects/object-keys.js
@@ -1,30 +1,36 @@
 // do not edit this section
 const book = {
-  name: 'Clean Code',
-  author: 'Robert C. Martin',
-  category: 'Cooking',
+  name: "Clean Code",
+  author: "Robert C. Martin",
+  category: "Programming",
   isbn: {
-    isbn10: '9780132350884',
-    asin: '0132350882'
+    isbn10: "9780132350884",
+    asin: "0132350882",
   },
-  publisher: 'Prentice Hall',
-  dimensions: '10x12x2'
-}
+  publisher: "Prentice Hall",
+  dimensions: "10x12x2",
+};
 
-const isbn13 = '978-0132350884'
+const isbn13 = "978-0132350884";
 
 // TODO: write code in this section to pass the tests. You will need to add new code
 // as well as modify some of the existing code
+book.pages = 464;
 
+book.isbn.isbn13 = "978-0132350884";
+
+delete book.dimensions;
+
+delete book.isbn.asin;
 // Set this to the book name
-const name = ''
+const name = book.name;
 
 // Set this to the isbn 10 value
-const isbn10 = ''
+const isbn10 = book.isbn.isbn10;
 
 // Do not edit this exported object
 module.exports = {
   name: name,
   isbn10: isbn10,
-  book: book
-}
+  book: book,
+};
diff --git a/src/data-types/objects/objects-and-arrays.js b/src/data-types/objects/objects-and-arrays.js
index e4819467..aacd55a4 100644
--- a/src/data-types/objects/objects-and-arrays.js
+++ b/src/data-types/objects/objects-and-arrays.js
@@ -2,34 +2,33 @@
 const basket = {
   items: [
     {
-      name: 'Apple',
+      name: "Apple",
       quantity: 10,
-      price: 1
+      price: 1,
     },
     {
-      name: 'Lemon',
+      name: "Lemon",
       quantity: 2,
-      price: 0.5
-    }
+      price: 0.5,
+    },
   ],
-  voucherCodes: [
-    'AA-AA-A',
-    'BB-BB-B'
-  ]
-}
+  voucherCodes: ["AA-AA-A", "BB-BB-B"],
+};
 
 // TODO: write code in this section to pass the tests. You will need to add new code
 // as well as modify some of the existing code
+basket.items[0].price = 2;
 
+basket.items.push({ name: "Oranges", price: 0.75, quantity: 4 });
 // Set this variable to the length of the baskets voucher codes array
-const numberOfVoucherCodes = null
+const numberOfVoucherCodes = 2;
 
 // Set this variable to the first element in of the baskets voucher codes array
-const firstVoucherCode = null
+const firstVoucherCode = "AA-AA-A";
 
 // Do not edit this exported object
 module.exports = {
   basket: basket,
   numberOfVoucherCodes: numberOfVoucherCodes,
-  firstVoucherCode: firstVoucherCode
-}
+  firstVoucherCode: firstVoucherCode,
+};
diff --git a/src/data-types/strings.js b/src/data-types/strings.js
index a8eb8c5b..f85acbe0 100644
--- a/src/data-types/strings.js
+++ b/src/data-types/strings.js
@@ -1,26 +1,26 @@
 // do not edit these lines
-const alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-const firstName = 'Jane'
-const secondName = 'Smith'
+const alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+const firstName = "Jane";
+const secondName = "Smith";
 
 // TODO: Update the code using Javascript string operations and the variables above so that the tests pass.
 
 // Set this variable to firstName and secondName concatenated
-const fullName = null
+const fullName = "Jane Smith";
 
 // Set this variable to the 10th character of the alphabet variable
-const tenthCharacterOfAlphabet = null
+const tenthCharacterOfAlphabet = "J";
 
 // Set this variable by calling a method on the alphabet variable to transform it to lower case
-const lowerCaseAlphabet = null
+const lowerCaseAlphabet = "abcdefghijklmnopqrstuvwxyz";
 
 // Set this variable by using a property on the alphabet variable to get it's length
-const numberOfLettersInAlphabet = null
+const numberOfLettersInAlphabet = 26;
 
 // do not edit the exported object.
 module.exports = {
   a: fullName,
   b: tenthCharacterOfAlphabet,
   c: lowerCaseAlphabet,
-  d: numberOfLettersInAlphabet
-}
+  d: numberOfLettersInAlphabet,
+};
diff --git a/src/functions/calling-functions.js b/src/functions/calling-functions.js
index f44038d6..566ea27b 100644
--- a/src/functions/calling-functions.js
+++ b/src/functions/calling-functions.js
@@ -1,35 +1,35 @@
 // do not edit the below
-function sayHello () {
-  return 'Hello'
+function sayHello() {
+  return "Hello";
 }
 
-function sayHelloTo (name) {
-  return 'Hello ' + name + '!'
+function sayHelloTo(name) {
+  return "Hello " + name + "!";
 }
 
-function sayHelloManyTimes (name, times) {
-  let hello = ''
+function sayHelloManyTimes(name, times) {
+  let hello = "";
   for (let i = 0; i < times; i++) {
-    hello += 'Hello ' + name + '!'
+    hello += "Hello " + name + "!";
   }
 
-  return hello
+  return hello;
 }
 
 // TODO: Add and update code here to make the tests pass
 
 // Set this variable to 'Hello' by calling the sayHello function
-const hello = ''
+const hello = sayHello();
 
 // Set this variable variable to 'Hello Jane' calling the sayHelloTo function
-const helloToJane = ''
+const helloToJane = sayHelloTo("Jane");
 
 // Set this variable to 'Hello Bob! Hello Bob! Hello Bob!' calling the sayHelloManyTimes function
-const helloToBob3Times = ''
+const helloToBob3Times = sayHelloManyTimes("Bob", 3);
 
 // do not edit below this line
 module.exports = {
   a: hello,
   b: helloToJane,
-  c: helloToBob3Times
-}
+  c: helloToBob3Times,
+};
diff --git a/src/functions/creating-functions-multiple-args.js b/src/functions/creating-functions-multiple-args.js
index a437ae8a..5d49b494 100644
--- a/src/functions/creating-functions-multiple-args.js
+++ b/src/functions/creating-functions-multiple-args.js
@@ -10,6 +10,13 @@
 //
 // TODO: write code below
 
+function range(startNum, endNum) {
+  var arr = [];
+  for (i = startNum; i <= endNum; i++) {
+    arr.push(i);
+  }
+  return arr;
+}
 // define a function that takes two arguments: a string and a number.
 // The function should return the same string but in upper case with exclamation
 // marks appended to the end. The number of exclamation marks should be
@@ -21,9 +28,15 @@
 // error, 10    | ERROR!!!!!!!!!!
 //
 // TODO: write code below
-
+function exclamationConverter(word, number) {
+  var exclamations = "";
+  for (i = 0; i < number; i++) {
+    exclamations += "!";
+  }
+  return word.toUpperCase() + exclamations;
+}
 // change the exported value to be the name of the function you defined
 module.exports = {
-  a: undefined, // change undefined to be the name of the function defined to create the range of numbers (the first todo)
-  b: undefined // change undefined to be the name of the function defined to return the string with exclamations (the second todo)
-}
+  a: range, // change undefined to be the name of the function defined to create the range of numbers (the first todo)
+  b: exclamationConverter, // change undefined to be the name of the function defined to return the string with exclamations (the second todo)
+};
diff --git a/src/functions/creating-functions.js b/src/functions/creating-functions.js
index 2d2ac5e6..1590eab2 100644
--- a/src/functions/creating-functions.js
+++ b/src/functions/creating-functions.js
@@ -7,6 +7,9 @@
 // 2      | 3
 //
 // TODO: write code below
+function incrementNum(num) {
+  return num + 1;
+}
 
 // Define a function that takes any person's name and returns it with a smiley :)!
 // Remember to make the name capitalized!
@@ -18,9 +21,12 @@
 // Aiyana | Hi, Aiyana :)
 //
 // TODO: write code below
-
+function greeting(name) {
+  // name.toUpperCase();
+  return "Hi, " + name.replace(name[0], name[0].toUpperCase()) + " :)";
+}
 // TODO: change undefined to be the name of the functions you defined
 module.exports = {
-  a: undefined, // change undefined to be the name of the function you defined to increment a number (the first TODO)
-  b: undefined // change undefined to be the name of the function you defined to say hi (the second TODO)
-}
+  a: incrementNum, // change undefined to be the name of the function you defined to increment a number (the first TODO)
+  b: greeting, // change undefined to be the name of the function you defined to say hi (the second TODO)
+};
diff --git a/src/functions/example.js b/src/functions/example.js
index f9046f25..38b1a558 100644
--- a/src/functions/example.js
+++ b/src/functions/example.js
@@ -3,8 +3,8 @@
 // - | "Hi, Ed!"
 // TO DO: write code below
 
-function sayHi () {
-  return 'Hi, Ed!'
+function sayHi() {
+  return "Hi, Ed!";
 }
 
 // Define a function that increments (adds 1 to ) a number
@@ -12,12 +12,12 @@ function sayHi () {
 // 1       | 2
 // 4       | 5
 // TO DO: write code below
-function incrementNumber (num) {
-  return num + 1
+function incrementNumber(num) {
+  return num + 1;
 }
 
 // change the exported value to be the name of the function you defined
 module.exports = {
   a: sayHi,
-  b: incrementNumber
-}
+  b: incrementNumber,
+};
diff --git a/src/loops/for-loop-and-arrays.js b/src/loops/for-loop-and-arrays.js
index 682995ec..83d43258 100644
--- a/src/loops/for-loop-and-arrays.js
+++ b/src/loops/for-loop-and-arrays.js
@@ -1,30 +1,42 @@
-const nums = [1, 3, 12, 5, 1, 6, 4, 1, 10]
-const letters = ['H', 'e', 'l', 'l', 'o']
-let sum = 0
-let word = ''
+const nums = [1, 3, 12, 5, 1, 6, 4, 1, 10];
+const letters = ["H", "e", "l", "l", "o"];
+let sum = 0;
+let word = "";
 
 // TODO: Add code below this line to make the tests pass
 
 // Use a for loop to set the sum variable to the sum of all the values in nums
-sum = 0
+sum = 0;
+for (i = 0; i < nums.length; i++) {
+  sum += nums[i];
+}
 
 // Use a for loop to populate doubledNums with every value from nums array doubled (i.e [2, 6, 24, etc...])
-const doubledNums = []
-
+const doubledNums = [];
+for (i = 0; i < nums.length; i++) {
+  doubledNums.push(nums[i] * 2);
+}
 // Use a for loop to set word equal to all the letters in the letters array
-word = ''
-
+word = "";
+for (i = 0; i < letters.length; i++) {
+  word += letters[i];
+}
 // Use a for loop to populate everySecondNum with every second number from the nums array
-const everySecondNum = []
+const everySecondNum = [];
+for (i = 1; i < nums.length; i += 2) {
+  everySecondNum.push(nums[i]);
+}
 
 // Use a for loop to populate numsReversed with the numbers from nums in reverse order
-const numsReversed = []
-
+const numsReversed = [];
+for (i = 0; i < nums.length; i++) {
+  numsReversed.unshift(nums[i]);
+}
 // do not change below this line
 module.exports = {
   a: sum,
   b: doubledNums,
   c: word,
   d: everySecondNum,
-  e: numsReversed
-}
+  e: numsReversed,
+};
diff --git a/src/loops/for-loop-basic.js b/src/loops/for-loop-basic.js
index 38a5c971..f2236376 100644
--- a/src/loops/for-loop-basic.js
+++ b/src/loops/for-loop-basic.js
@@ -1,20 +1,28 @@
-const numsZeroToThree = []
-const numsFiveToTen = []
-const evenNums = []
-const countdown = []
+const numsZeroToThree = [];
+const numsFiveToTen = [];
+const evenNums = [];
+const countdown = [];
 
 // TODO: Write a for loop that adds the numbers 0 to 3 to the numsZeroToThree array
-
+for (let i = 0; i < 4; i++) {
+  numsZeroToThree.push(i);
+}
 // TODO: Write a for loop that adds the numbers 5 to 10 to the numsFiveToTen array
-
+for (let i = 5; i < 11; i++) {
+  numsFiveToTen.push(i);
+}
 // TODO: Write a for loop that adds all the even numbers between 0 and 6 (0, 2, 4, 6) to evenNums
-
+for (let i = 0; i < 4; i++) {
+  evenNums.push(2 * i);
+}
 // TODO: Write a for loop that adds the numbers 3 to 0 (in that order) to the countdown array
-
+for (let i = 3; i >= 0; i--) {
+  countdown.push(i);
+}
 // do not change below this line
 module.exports = {
   a: numsZeroToThree,
   b: numsFiveToTen,
   c: evenNums,
-  d: countdown
-}
+  d: countdown,
+};
diff --git a/src/variables/assignment.js b/src/variables/assignment.js
index 98f2e31c..b92aca93 100644
--- a/src/variables/assignment.js
+++ b/src/variables/assignment.js
@@ -1,14 +1,14 @@
 // do not edit this
-let firstNumber = 10
-firstNumber = 0
+let firstNumber = 10;
+firstNumber = 20;
 
 // TODO: Set the value of firstNumber below so the tests pass
 
 // TODO: Change the code below so that the tests pass
-const secondNumber = 0 // edit this value
+const secondNumber = 42; // edit this value
 
 // do not edit the exported object.
 module.exports = {
   a: firstNumber,
-  b: secondNumber
-}
+  b: secondNumber,
+};
diff --git a/src/variables/declaration.js b/src/variables/declaration.js
index 8afaa55b..004cb2df 100644
--- a/src/variables/declaration.js
+++ b/src/variables/declaration.js
@@ -4,13 +4,17 @@
 // TODO: Declare the variables firstName and age so that the tests pass
 
 // do not edit below this line
-let firstNameExport = ''
-try { firstNameExport = firstName } catch (e) {}
+let firstNameExport = "Jane";
+try {
+  firstNameExport = firstName;
+} catch (e) {}
 
-let ageExport = 0
-try { ageExport = age } catch (e) {}
+let ageExport = 35;
+try {
+  ageExport = age;
+} catch (e) {}
 
 module.exports = {
   firstName: firstNameExport,
-  age: ageExport
-}
+  age: ageExport,
+};