From 82db6f7685fbf2f00f5352a5bbc59992bceff138 Mon Sep 17 00:00:00 2001
From: mandy-cheung <109825538+m4ndycheung@users.noreply.github.com>
Date: Fri, 24 Feb 2023 19:55:15 +0000
Subject: [PATCH 01/10] Completed 1-fix-functions, added to 2-function-creation

---
 mandatory/1-fix-functions.js     | 8 ++------
 mandatory/2-function-creation.js | 8 +++++++-
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/mandatory/1-fix-functions.js b/mandatory/1-fix-functions.js
index 6323604f..5ed2e5a8 100644
--- a/mandatory/1-fix-functions.js
+++ b/mandatory/1-fix-functions.js
@@ -10,9 +10,7 @@
 
 */
 
-function getMood() {
-  let isHappy = true;
-
+function getMood(isHappy) {
   if (isHappy) {
     return "I am happy";
   } else {
@@ -21,9 +19,7 @@ function getMood() {
 }
 
 function greaterThan10(num) {
-  let isBigEnough;
-
-  if (isBigEnough) {
+  if (num > 10) {
     return "num is greater than 10";
   } else {
     return "num is not big enough";
diff --git a/mandatory/2-function-creation.js b/mandatory/2-function-creation.js
index d4590920..0f285204 100644
--- a/mandatory/2-function-creation.js
+++ b/mandatory/2-function-creation.js
@@ -4,7 +4,13 @@
     1. the user should be 18 or older
     2. the user must be logged in
 */
-function isAcceptableUser(userAge, isLoggedIn) {}
+function isAcceptableUser(userAge, isLoggedIn) {
+  if (userAge >=18 && isLoggedIn === true) {
+    return true;
+  } else {
+    return false;
+  }
+}
 
 /*
   Complete the function to apply discount percent based on how much is totalPrice in user cart.

From 64d0bddc711f48a677299acb04849475887ae94c Mon Sep 17 00:00:00 2001
From: mandy-cheung <109825538+m4ndycheung@users.noreply.github.com>
Date: Fri, 24 Feb 2023 21:22:12 +0000
Subject: [PATCH 02/10] Completed discount, odd numbers, buy two get cheapest
 free

---
 mandatory/2-function-creation.js | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/mandatory/2-function-creation.js b/mandatory/2-function-creation.js
index 0f285204..f8914cc7 100644
--- a/mandatory/2-function-creation.js
+++ b/mandatory/2-function-creation.js
@@ -21,18 +21,42 @@ function isAcceptableUser(userAge, isLoggedIn) {
     is applieds and 142.5 should be returned)
 */
 
-function applyDiscount(totalPrice) {}
+function applyDiscount(totalPrice) {
+  if (totalPrice >= 200) {
+    return totalPrice - (totalPrice * 0.1);
+  } else {
+    return totalPrice - (totalPrice * 0.05);
+  }
+}
 
 /*
   Complete the function to print to the console the odd numbers between 1 and limit (use a while loop):
   */
-function printOddNumbers(limit) {}
+function printOddNumbers(limit) {
+  let count = 1;
+
+  while (count < limit) {
+    if (count % 2 === 1) {
+    console.log(count);
+    }
+    count = count + 1;
+  }
+}
 
 /*
   Complete the buyTwoGetTheCheapestFree function: if user buys two items, the cheapest item will be free!
   The function should return the price to be paid once the discount is applied.
 */
-function buyTwoGetTheCheapestFree(price1, price2) {}
+function buyTwoGetTheCheapestFree(price1, price2) {
+    if (price1 && price2) {
+        if (price1 >= price2) {
+            return price1;
+        } else if (price2 >= price1) {
+            return price2;
+        }
+    }
+  }
+
 
 /*
   Complete the function to determine if it is suitable for a person to register based on their age!

From 9f7a3e5e7525c6199469525385f4f2028f5f7422 Mon Sep 17 00:00:00 2001
From: mandy <109825538+m4ndycheung@users.noreply.github.com>
Date: Sat, 25 Feb 2023 15:12:03 +0000
Subject: [PATCH 03/10] Added to function creation

Added an if statement
---
 mandatory/2-function-creation.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/mandatory/2-function-creation.js b/mandatory/2-function-creation.js
index f8914cc7..f869c081 100644
--- a/mandatory/2-function-creation.js
+++ b/mandatory/2-function-creation.js
@@ -64,7 +64,11 @@ function buyTwoGetTheCheapestFree(price1, price2) {
   - if the person is older than 12 and younger than 90 it should return "You Can Register"
   - if the person is 90 or older it should return "You Don't Need To Register"
 */
-function canRegister(age) {}
+function canRegister(age) {
+  if (age <= 12) {
+    return `You Are Too Young To Register`;
+  }
+}
 
 /*
   Complete the function so that it prints out to the console numbers in reverse order starting at

From f91009b35d5cb50a1bc35d4829ea48b45c999cfe Mon Sep 17 00:00:00 2001
From: mandy <109825538+m4ndycheung@users.noreply.github.com>
Date: Sat, 25 Feb 2023 15:18:29 +0000
Subject: [PATCH 04/10] Added an else if statement to canRegister

Tested it and it works out.
---
 mandatory/2-function-creation.js | 2 ++
 package.json                     | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/mandatory/2-function-creation.js b/mandatory/2-function-creation.js
index f869c081..e9b9455f 100644
--- a/mandatory/2-function-creation.js
+++ b/mandatory/2-function-creation.js
@@ -67,6 +67,8 @@ function buyTwoGetTheCheapestFree(price1, price2) {
 function canRegister(age) {
   if (age <= 12) {
     return `You Are Too Young To Register`;
+  } else if (age > 12 && age < 90) {
+    return `You Can Register`;
   }
 }
 
diff --git a/package.json b/package.json
index b70825c7..1373a338 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "scripts": {
     "test": "jest"
   },
-    "jest": {
+  "jest": {
     "projects": [
       {
         "displayName": "mandatory",

From adf7bf2596b853959bdd86038a3840bab3fd88e4 Mon Sep 17 00:00:00 2001
From: mandy <109825538+m4ndycheung@users.noreply.github.com>
Date: Sat, 25 Feb 2023 15:19:54 +0000
Subject: [PATCH 05/10] Completed 2-function creation

---
 mandatory/2-function-creation.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mandatory/2-function-creation.js b/mandatory/2-function-creation.js
index e9b9455f..39d462a5 100644
--- a/mandatory/2-function-creation.js
+++ b/mandatory/2-function-creation.js
@@ -69,6 +69,8 @@ function canRegister(age) {
     return `You Are Too Young To Register`;
   } else if (age > 12 && age < 90) {
     return `You Can Register`;
+  } else if (age >= 90) {
+    return `You Don't Need To Register`;
   }
 }
 

From d7fdebf023a72a9b1be3bd404c88573b32c2afd2 Mon Sep 17 00:00:00 2001
From: mandy <109825538+m4ndycheung@users.noreply.github.com>
Date: Sat, 25 Feb 2023 16:31:28 +0000
Subject: [PATCH 06/10] Update 2-function-creation.js

---
 mandatory/2-function-creation.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mandatory/2-function-creation.js b/mandatory/2-function-creation.js
index 39d462a5..b66e31a4 100644
--- a/mandatory/2-function-creation.js
+++ b/mandatory/2-function-creation.js
@@ -83,7 +83,12 @@ function canRegister(age) {
   )
 */
 
-function countReverse(number) {}
+function countReverse(number) {
+  while (number >= 1) {
+    console.log(number);
+    number--;
+  }
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 

From 856167fd4f33dff0d07664fdcf68d638a8f249f7 Mon Sep 17 00:00:00 2001
From: mandy-cheung <109825538+m4ndycheung@users.noreply.github.com>
Date: Wed, 1 Mar 2023 11:50:42 +0000
Subject: [PATCH 07/10] Made changes to 2-function-creation applyDiscount
 answer

---
 mandatory/2-function-creation.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mandatory/2-function-creation.js b/mandatory/2-function-creation.js
index b66e31a4..674fce79 100644
--- a/mandatory/2-function-creation.js
+++ b/mandatory/2-function-creation.js
@@ -23,9 +23,9 @@ function isAcceptableUser(userAge, isLoggedIn) {
 
 function applyDiscount(totalPrice) {
   if (totalPrice >= 200) {
-    return totalPrice - (totalPrice * 0.1);
+    return totalPrice * 0.9;
   } else {
-    return totalPrice - (totalPrice * 0.05);
+    return totalPrice * 0.95;
   }
 }
 

From db31bb2ba4a5a0350f5008328faae09d798b4f32 Mon Sep 17 00:00:00 2001
From: mandy-cheung <109825538+m4ndycheung@users.noreply.github.com>
Date: Thu, 2 Mar 2023 16:51:39 +0000
Subject: [PATCH 08/10] Added answer to extra

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

diff --git a/extra/1-factorial.js b/extra/1-factorial.js
index da9f8e6c..9bd2c075 100644
--- a/extra/1-factorial.js
+++ b/extra/1-factorial.js
@@ -9,7 +9,21 @@
 */
 
 function factorial(input) {
-  // TODO
+  // 0! = 1
+  // 1! = 1
+  if (input === 0 || input === 1) {
+    return 1;
+  }
+
+  // the result of the factorial calculation will be stored in here
+  let factorialResult = 1;
+
+  // stops when i is greater than the input
+  for (i = 1; i <= input; i++) {
+    factorialResult = factorialResult * i;
+  }
+
+  return factorialResult;
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */

From 7fb421e2610c803c442992be7b92179334c83f82 Mon Sep 17 00:00:00 2001
From: mandy-cheung <109825538+m4ndycheung@users.noreply.github.com>
Date: Thu, 2 Mar 2023 16:55:37 +0000
Subject: [PATCH 09/10] Amended answer to 2-function-creation

Took on Michael's feedback to write count = count + 1 in a shorter way
---
 mandatory/2-function-creation.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mandatory/2-function-creation.js b/mandatory/2-function-creation.js
index 674fce79..1fa336f8 100644
--- a/mandatory/2-function-creation.js
+++ b/mandatory/2-function-creation.js
@@ -39,7 +39,7 @@ function printOddNumbers(limit) {
     if (count % 2 === 1) {
     console.log(count);
     }
-    count = count + 1;
+    count++;
   }
 }
 

From 61ad3d1e17e1d7fad73d3dc865044cc46cf7509a Mon Sep 17 00:00:00 2001
From: mandy-cheung <109825538+m4ndycheung@users.noreply.github.com>
Date: Thu, 2 Mar 2023 17:09:40 +0000
Subject: [PATCH 10/10] Updated answers for 2-function-creation

Took on Michael's feedback and added indentation to printOddNumbers.

Also declared a let variable for countReverse so that input data won't be modified
---
 mandatory/2-function-creation.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/mandatory/2-function-creation.js b/mandatory/2-function-creation.js
index 1fa336f8..ced085ed 100644
--- a/mandatory/2-function-creation.js
+++ b/mandatory/2-function-creation.js
@@ -37,7 +37,7 @@ function printOddNumbers(limit) {
 
   while (count < limit) {
     if (count % 2 === 1) {
-    console.log(count);
+      console.log(count);
     }
     count++;
   }
@@ -84,9 +84,11 @@ function canRegister(age) {
 */
 
 function countReverse(number) {
-  while (number >= 1) {
-    console.log(number);
-    number--;
+  let currentNumber = number;
+
+  while (currentNumber >= 1) {
+    console.log(currentNumber);
+    currentNumber--;
   }
 }