From 0e93b520b21c73aa759c978e73371553f1508209 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 1 Jul 2025 17:47:28 +0100
Subject: [PATCH 01/22] error correction

---
 Sprint-2/1-key-errors/0.js | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 653d6f5a0..0dbc9cfa5 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -1,13 +1,13 @@
-// Predict and explain first...
-//  =============> write your prediction here
+/"hello Mhairi" === `hello ${mhairiName}`;
+"${mhairiName} is 28" === `Mhairi is ${mhairiAge}`;
 
-// call the function capitalise with a string input
-// interpret the error message and figure out why an error is occurring
+// My answer is:
+const mhairiName = "Mhairi";
+const mhairiAge = 28;
 
-function capitalise(str) {
-  let str = `${str[0].toUpperCase()}${str.slice(1)}`;
-  return str;
-}
+const sentence1= `hello ${mhairiName}`;
+console.log(sentence1); // ➜ Output: hello Mhairi
 
-// =============> write your explanation here
-// =============> write your new code here
+
+const sentence= `${mhairiName} is ${mhairiAge}`;
+console.log(sentence);  // ➜ Output: Mhairi is 28

From 202d64e7e2e2c4a8f187dadf292aab03f389594b Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 1 Jul 2025 18:09:49 +0100
Subject: [PATCH 02/22] error correction

---
 Sprint-2/1-key-errors/1.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index f2d56151f..b0e90042e 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -14,7 +14,14 @@ function convertToPercentage(decimalNumber) {
 
 console.log(decimalNumber);
 
-// =============> write your explanation here
+// =============>const decimalNumber =0.5 is wrong because we can not redeclare parameter using const inside function. 
+// what is more, decimalNumber is not defined in thed global scope so we can not use console.log(decimalNumber)
+    
 
 // Finally, correct the code to fix the problem
-// =============> write your new code here
+// =============> 
+function convertToPercentage(decimalNumber) {const percentage = `${decimalNumber*100}%`;return percentage;}
+const decimalNumber = 0.5
+
+console.log(convertToPercentage(decimalNumber)); 
+console.log(decimalNumber);
\ No newline at end of file

From 5d023b1c8562b21ecde26ca53c6f29ace4571c4b Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 1 Jul 2025 18:19:33 +0100
Subject: [PATCH 03/22] error correction

---
 Sprint-2/1-key-errors/2.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index aad57f7cf..54df9fc3e 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -3,18 +3,22 @@
 
 // this function should square any number but instead we're going to get an error
 
-// =============> write your prediction of the error here
+// =============> wrong syntax the number 3 should not be in function
 
 function square(3) {
     return num * num;
 }
 
-// =============> write the error message here
+// =============> syntaxError: Unexpected number
 
-// =============> explain this error message here
+// =============> when defining a function, the parentheses must contain parameter names, not values.
+//                 function square(3) is invalid because 3 is a value, not a parameter name.
 
 // Finally, correct the code to fix the problem
 
-// =============> write your new code here
+// =============>
+function square(num){return num*num};
+
+console.log (square(3));
 
 

From 43cff66cd54c7b4213a903659dec636a5ad091e3 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 1 Jul 2025 18:35:00 +0100
Subject: [PATCH 04/22] explain error

---
 Sprint-2/2-mandatory-debug/0.js | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index b27511b41..ee79ade10 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -1,6 +1,6 @@
 // Predict and explain first...
 
-// =============> write your prediction here
+// =============> console.log(a*b) is inside the function, so it does not return anything instead return undefined by default
 
 function multiply(a, b) {
   console.log(a * b);
@@ -8,7 +8,16 @@ function multiply(a, b) {
 
 console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
-// =============> write your explanation here
+// =============> When we call multiply(10, 32) inside the template string, it first runs console.log(320) inside the function.
+// Then it tries to insert the function’s return value (which is undefined) into the string.
+// So, we’ll see:csharp
+//               Copy
+//               Edit
+//               320
+//              The result of multiplying 10 and 32 is undefined
 
 // Finally, correct the code to fix the problem
-//  =============> write your new code here
+//  =============> my new code:
+function multiply(a,b) {return(a*b)};
+
+console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);

From b52edc9e8dd5fb2bba645b5eca7243a987571c54 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 1 Jul 2025 18:44:35 +0100
Subject: [PATCH 05/22] spot error

---
 Sprint-2/2-mandatory-debug/1.js | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/1.js b/Sprint-2/2-mandatory-debug/1.js
index 37cedfbcf..e24bd5bbb 100644
--- a/Sprint-2/2-mandatory-debug/1.js
+++ b/Sprint-2/2-mandatory-debug/1.js
@@ -1,5 +1,5 @@
 // Predict and explain first...
-//  =============> write your prediction here
+//  =============> it should be{return a+b;}; rather than have semicolon between return and a+b
 
 function sum(a, b) {
   return;
@@ -8,6 +8,17 @@ function sum(a, b) {
 
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
-// =============> write your explanation here
+// =============> The return; statement immediately exits the function and returns undefined.
+// The line a + b; after return; never runs — it's unreachable code.So, when we call sum(10, 32), it returns undefined.
+// Output we get:
+// python
+// Copy
+// Edit
+// The sum of 10 and 32 is undefined
 // Finally, correct the code to fix the problem
-//  =============> write your new code here
+//  =============> my new code:
+function sum (a,b) {return a+b;};
+
+console.log (`The sum of 10 and 32 is ${sum(10, 32)}`);
+
+// the output: The sum of 10 and 32 is 42

From 9c517544a8ddc5533b020351583156dd64f8edd6 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 1 Jul 2025 18:58:49 +0100
Subject: [PATCH 06/22] error explaination

---
 Sprint-2/2-mandatory-debug/2.js | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/2.js b/Sprint-2/2-mandatory-debug/2.js
index 57d3f5dc3..63a83c3b6 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -1,7 +1,7 @@
 // Predict and explain first...
 
 // Predict the output of the following code:
-// =============> Write your prediction here
+// =============> get rid of const num = 103 as it is defined in global scope. the output will be always 3.
 
 const num = 103;
 
@@ -14,11 +14,27 @@ console.log(`The last digit of 105 is ${getLastDigit(105)}`);
 console.log(`The last digit of 806 is ${getLastDigit(806)}`);
 
 // Now run the code and compare the output to your prediction
-// =============> write the output here
+// =============> The last digit of 42 is 3
+//The last digit of 105 is 3
+//The last digit of 806 is 3
+// 
+
 // Explain why the output is the way it is
-// =============> write your explanation here
+//num is always 103 inside the function (from the global variable).
+//So, every call to getLastDigit() returns "3" (the last digit of 103).
+//The arguments you pass (like 42, 105) are ignored because the function doesn't take parameters.
+
+
 // Finally, correct the code to fix the problem
-// =============> write your new code here
+// =============> my new code:
+function getLastDigit(num) {return num.toString().slice(-1);};
+
+console.log(`The last digit of 42 is ${getLastDigit(42)}`);
+console.log(`The last digit of 105 is ${getLastDigit(105)}`);
+console.log(`The last digit of 806 is ${getLastDigit(806)}`);
 
+// The output will be: The last digit of 42 is 2
+//                     The last digit of 105 is 5
+//                     The last digit of 806 is 6
 // This program should tell the user the last digit of each number.
 // Explain why getLastDigit is not working properly - correct the problem

From 280323481dc0bf51f20c0d6e579ac03afec92c04 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 1 Jul 2025 22:56:04 +0100
Subject: [PATCH 07/22] complete code

---
 Sprint-2/3-mandatory-implement/1-bmi.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js
index 17b1cbde1..4d6db9edb 100644
--- a/Sprint-2/3-mandatory-implement/1-bmi.js
+++ b/Sprint-2/3-mandatory-implement/1-bmi.js
@@ -14,6 +14,7 @@
 // Then when we call this function with the weight and height
 // It should return their Body Mass Index to 1 decimal place
 
-function calculateBMI(weight, height) {
-    // return the BMI of someone based off their weight and height
-}
\ No newline at end of file
+function calculateBMI(weight, height) { const bmi= weight/(height*height); return parseFloat(bmi.toFixed(1));}
+
+    
+console.log(calculateBMI(58,1.50)); // output: 25.8

From 934f53b18252823060665aa76e3f96d1afca3e2c Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 1 Jul 2025 23:09:47 +0100
Subject: [PATCH 08/22] complete simple code

---
 Sprint-2/3-mandatory-implement/2-cases.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index 5b0ef77ad..5b0d3f90d 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -14,3 +14,16 @@
 // You will need to come up with an appropriate name for the function
 // Use the MDN string documentation to help you find a solution
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
+
+// The function  to convert any string to UPPER_SNAKE_CASE:
+
+function toUpperSnakeCase(input) {
+  return input.trim().toUpperCase().replace(/\s+/g, "_");}
+
+console.log(toUpperSnakeCase("hello there")); // output:HELLO_THERE
+console.log(toUpperSnakeCase("lord of the rings")); // output: LORD_OF_THE_RINGS
+
+//trim() removes extra spaces at the beginning and end.
+//toUpperCase() makes everything uppercase.
+//replace(/\s+/g, "_") replaces all spaces (even multiple) with underscores.
+

From 1ccd377ffe54011091b67a4241c381ac742e7a5e Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 1 Jul 2025 23:20:35 +0100
Subject: [PATCH 09/22] function completion

---
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js
index 6265a1a70..c71902ae2 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -4,3 +4,27 @@
 // You will need to declare a function called toPounds with an appropriately named parameter.
 
 // You should call this function a number of times to check it works for different inputs
+// the code is:
+function formatPenceToPounds(penceString) {
+  const penceStringWithoutTrailingP = penceString.substring(
+    0,
+    penceString.length - 1
+  );
+
+  const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+  const pounds = paddedPenceNumberString.substring(
+    0,
+    paddedPenceNumberString.length - 2
+  );
+
+  const pence = paddedPenceNumberString
+    .substring(paddedPenceNumberString.length - 2)
+    .padEnd(2, "0");
+
+  return `£${pounds}.${pence}`;
+}
+
+console.log(formatPenceToPounds("7p"));     // £0.07
+console.log(formatPenceToPounds("67p"));    // £0.67
+console.log(formatPenceToPounds("153p"));   // £1.53
+console.log(formatPenceToPounds("3p"));     // £0.03
\ No newline at end of file

From 43f590e43f50bbb18c260093b0f786c0c8455c43 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Wed, 2 Jul 2025 11:17:19 +0100
Subject: [PATCH 10/22] question answered

---
 Sprint-2/4-mandatory-interpret/time-format.js | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index 7c98eb0e8..0716cd876 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -17,18 +17,21 @@ function formatTimeDisplay(seconds) {
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-// =============> write your answer here
+// =============> pad is called 3 times — once for hours, once for minutes, and once for seconds.
+
 
 // Call formatTimeDisplay with an input of 61, now answer the following:
 
 // b) What is the value assigned to num when pad is called for the first time?
-// =============> write your answer here
+// =============> pad is first called for total hourse which is 0 hours
 
 // c) What is the return value of pad is called for the first time?
-// =============> write your answer here
+// =============> the return value is "00"
 
 // d) What is the value assigned to num when pad is called for the last time in this program?  Explain your answer
-// =============> write your answer here
+// =============> pad is called for total seconds at last time which is 1 seconds.
 
 // e) What is the return value assigned to num when pad is called for the last time in this program?  Explain your answer
-// =============> write your answer here
+// =============> the return value is "01".It pads "1" with a leading zero to ensure two digits.
+
+

From 90208f2bec030aa94f39772c8b6f69fc3407aab7 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Wed, 2 Jul 2025 20:03:14 +0100
Subject: [PATCH 11/22] further explaination

---
 Sprint-2/4-mandatory-interpret/time-format.js | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index 0716cd876..4c1177be3 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -17,21 +17,26 @@ function formatTimeDisplay(seconds) {
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-// =============> pad is called 3 times — once for hours, once for minutes, and once for seconds.
+// =============> pad is called 3 times — once each for hours, for minutes andvfor seconds.
 
 
 // Call formatTimeDisplay with an input of 61, now answer the following:
 
 // b) What is the value assigned to num when pad is called for the first time?
-// =============> pad is first called for total hourse which is 0 hours
+// =============> The first call is for totalHours, and when you call formatTimeDisplay(61), the value of totalHours is:
+//totalHours = (61 - 1) / 60 = 60 / 60 = 1, remainingMinutes = 1
+//totalHours = totalMinutes - remainingMinutes = 1 - 1 = 0
+// So, num = 0 for the first pad call.
 
 // c) What is the return value of pad is called for the first time?
-// =============> the return value is "00"
+// =============> The return value is "00" because pad(0) results in "00" using .padStart(2, "0").
 
 // d) What is the value assigned to num when pad is called for the last time in this program?  Explain your answer
-// =============> pad is called for total seconds at last time which is 1 seconds.
+// =============> The last call is for remaining seconds. With input 61, remainingSeconds = 61 % 60 = 1, so num = 1 in the last call.
 
 // e) What is the return value assigned to num when pad is called for the last time in this program?  Explain your answer
-// =============> the return value is "01".It pads "1" with a leading zero to ensure two digits.
+// =============> The return value is "01" – pad(1) returns "01" because it adds a leading zero to make it 2 characters.
+
+// so final output should be "00:01:01"
 
 

From c60427b1facbf96d0ab37ef5e68139a159358581 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Wed, 2 Jul 2025 20:29:10 +0100
Subject: [PATCH 12/22] fix bugs

---
 Sprint-2/5-stretch-extend/format-time.js | 38 ++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/Sprint-2/5-stretch-extend/format-time.js b/Sprint-2/5-stretch-extend/format-time.js
index 32a32e66b..527a98d44 100644
--- a/Sprint-2/5-stretch-extend/format-time.js
+++ b/Sprint-2/5-stretch-extend/format-time.js
@@ -23,3 +23,41 @@ console.assert(
   currentOutput2 === targetOutput2,
   `current output: ${currentOutput2}, target output: ${targetOutput2}`
 );
+ 
+// i put this function for test in console, chrome but it showed undefined then i put 12:00 and the output is:Uncaught SyntaxError: 
+// Unexpected token.so the function is not workable and has some bugs.Unfortunately, i can not work out by myself, i went to chatGpt which 
+// explained the detail to me. function format12HourClock(time) does not work right because it does not work for 12:00, 24:00 d not for
+// minutes either. The right function should be:
+
+function formatAs12HourClock(time) {
+  const hours24 = Number(time.slice(0, 2));
+  const minutes = time.slice(3);
+  
+  const period = hours24 >= 12 ? "pm" : "am";
+  const hours12 = hours24 % 12 === 0 ? 12 : hours24 % 12;
+
+  return `${String(hours12).padStart(2, "0")}:${minutes} ${period}`;
+}
+
+const currentOutput = formatAs12HourClock("08:00");
+const targetOutput = "08:00 am";
+console.assert(
+  currentOutput === targetOutput,
+  `current output: ${currentOutput}, target output: ${targetOutput}`
+);
+
+const currentOutput2 = formatAs12HourClock("23:00");
+const targetOutput2 = "11:00 pm";
+console.assert(
+  currentOutput2 === targetOutput2,
+  `current output: ${currentOutput2}, target output: ${targetOutput2}`
+);
+
+// const period = hours24 >= 12 ? "pm" : "am";This line uses a ternary operator — a concise way to write an if...else statement.
+// If hours24 is greater than or equal to 12, then set period to "pm".Otherwise, set it to "am".
+
+// const hours12 = hours24 % 12 === 0 ? 12 : hours24 % 12;This is also a ternary operator (shortcut for if...else) 
+// used to convert 24-hour time to 12-hour time format, which means:"If hours24 % 12 is 0, then set hours12 to 12, 
+// otherwise set it to hours24 % 12." For me, i can understand now with chatgpt help.
+
+

From 9ab417a47c7eef7171da8d80c359bd7018b1c8ac Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Sat, 19 Jul 2025 12:53:09 +0100
Subject: [PATCH 13/22] code ijmprovement

---
 Sprint-2/1-key-errors/0.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 0dbc9cfa5..cb5359e7e 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -1,13 +1,13 @@
-/"hello Mhairi" === `hello ${mhairiName}`;
+"hello Mhairi" === `hello ${mhairiName}`;
 "${mhairiName} is 28" === `Mhairi is ${mhairiAge}`;
 
 // My answer is:
 const mhairiName = "Mhairi";
 const mhairiAge = 28;
 
-const sentence1= `hello ${mhairiName}`;
-console.log(sentence1); // ➜ Output: hello Mhairi
+const sentence1= `Hello ${mhairiName},nice to meet you`;
+console.log(sentence1); // ➜ Output: Hello Mhairi, nice to meet you
 
 
-const sentence= `${mhairiName} is ${mhairiAge}`;
-console.log(sentence);  // ➜ Output: Mhairi is 28
+const sentence= `${mhairiName} is ${mhairiAge} years old`;
+console.log(sentence);  // ➜ Output: Mhairi is 28 years old

From f396f5f72ad70bdd810e33f5c24ed0054c4306b8 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Sat, 19 Jul 2025 13:08:15 +0100
Subject: [PATCH 14/22] code improve

---
 Sprint-2/1-key-errors/1.js | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index b0e90042e..58ce38e90 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -15,13 +15,21 @@ function convertToPercentage(decimalNumber) {
 console.log(decimalNumber);
 
 // =============>const decimalNumber =0.5 is wrong because we can not redeclare parameter using const inside function. 
-// what is more, decimalNumber is not defined in thed global scope so we can not use console.log(decimalNumber)
+// what is more, decimalNumber is not defined in the global scope so we can not use console.log(decimalNumber)
     
 
 // Finally, correct the code to fix the problem
 // =============> 
-function convertToPercentage(decimalNumber) {const percentage = `${decimalNumber*100}%`;return percentage;}
-const decimalNumber = 0.5
+function convertToPercentage(decimalNumber) {
+  const percentage = `${decimalNumber * 100}%`;
+  return percentage;
+}
+
+console.log(convertToPercentage(0.5)); // Output: "50%"
+
+//or another concised code
+function convertToPercentage(decimalNumber) {
+  return`${decimalNumber * 100}%`;
+}
 
-console.log(convertToPercentage(decimalNumber)); 
-console.log(decimalNumber);
\ No newline at end of file
+console.log(convertToPercentage(0.5)); // Output: "50%"
\ No newline at end of file

From 1056db816f3b29b0e33d3fe8cc221e7e4891d9d5 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 22 Jul 2025 12:16:42 +0100
Subject: [PATCH 15/22] answer and fix error

---
 Sprint-2/1-key-errors/0.js | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index cb5359e7e..da7b0a7a5 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -1,13 +1,21 @@
-"hello Mhairi" === `hello ${mhairiName}`;
-"${mhairiName} is 28" === `Mhairi is ${mhairiAge}`;
+// Predict and explain first...
+// it should show syntax error
 
-// My answer is:
-const mhairiName = "Mhairi";
-const mhairiAge = 28;
+// call the function capitalise with a string input
+// interpret the error message and figure out why an error is occurring
 
-const sentence1= `Hello ${mhairiName},nice to meet you`;
-console.log(sentence1); // ➜ Output: Hello Mhairi, nice to meet you
+function capitalise(str) {
+  let str = `${str[0].toUpperCase()}${str.slice(1)}`;
+  return str;
+}
+
+// the input "sty" is the same as output "str" which is not allowed in JS
+// my new code:
+
+function capitalise(str) {
+    return(`${str[0].toUpperCase()}${str. slice(1)}`)
+}
+console.log(capitalise("morning"))
+console.log(capitalise("heavy"))
 
 
-const sentence= `${mhairiName} is ${mhairiAge} years old`;
-console.log(sentence);  // ➜ Output: Mhairi is 28 years old

From 70ef11138a8b838cde8194911e4d94bc0201d999 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 3 Feb 2026 14:16:23 +0000
Subject: [PATCH 16/22] practicing

---
 Sprint-2/1-key-errors/0.js | 2 +-
 Sprint-2/1-key-errors/1.js | 5 ++---
 Sprint-2/1-key-errors/2.js | 4 +++-
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index da7b0a7a5..1a8acd4d7 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -9,7 +9,7 @@ function capitalise(str) {
   return str;
 }
 
-// the input "sty" is the same as output "str" which is not allowed in JS
+// the input "str" is the same as output "str" which is not allowed in JS
 // my new code:
 
 function capitalise(str) {
diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index 58ce38e90..24b5a8473 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -14,12 +14,11 @@ function convertToPercentage(decimalNumber) {
 
 console.log(decimalNumber);
 
-// =============>const decimalNumber =0.5 is wrong because we can not redeclare parameter using const inside function. 
+// const decimalNumber =0.5 is wrong because we can not redeclare parameter using const inside function. 
 // what is more, decimalNumber is not defined in the global scope so we can not use console.log(decimalNumber)
     
 
-// Finally, correct the code to fix the problem
-// =============> 
+//  correct the code to fix the problem
 function convertToPercentage(decimalNumber) {
   const percentage = `${decimalNumber * 100}%`;
   return percentage;
diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index 54df9fc3e..780f91074 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -17,7 +17,9 @@ function square(3) {
 // Finally, correct the code to fix the problem
 
 // =============>
-function square(num){return num*num};
+function square(num){
+    return num*num
+};
 
 console.log (square(3));
 

From 2feb2bfd37157119fbfd31abc35ed43eca94527d Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 3 Feb 2026 14:34:39 +0000
Subject: [PATCH 17/22] practicing

---
 Sprint-2/2-mandatory-debug/2.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/2-mandatory-debug/2.js b/Sprint-2/2-mandatory-debug/2.js
index 63a83c3b6..6e7c68b71 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -19,7 +19,8 @@ console.log(`The last digit of 806 is ${getLastDigit(806)}`);
 //The last digit of 806 is 3
 // 
 
-// Explain why the output is the way it is
+// Explain why the output is the way it is:
+
 //num is always 103 inside the function (from the global variable).
 //So, every call to getLastDigit() returns "3" (the last digit of 103).
 //The arguments you pass (like 42, 105) are ignored because the function doesn't take parameters.

From 486e599371c00cff8373dcb16d22c6c5d944ea10 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 3 Feb 2026 15:37:29 +0000
Subject: [PATCH 18/22] practicing

---
 Sprint-2/3-mandatory-implement/1-bmi.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js
index 4d6db9edb..f0b6fdf9c 100644
--- a/Sprint-2/3-mandatory-implement/1-bmi.js
+++ b/Sprint-2/3-mandatory-implement/1-bmi.js
@@ -14,7 +14,10 @@
 // Then when we call this function with the weight and height
 // It should return their Body Mass Index to 1 decimal place
 
-function calculateBMI(weight, height) { const bmi= weight/(height*height); return parseFloat(bmi.toFixed(1));}
+function calculateBMI(weight, height) { 
+    const bmi= weight/(height*height); 
+    return bmi.toFixed(1);
+}
 
     
 console.log(calculateBMI(58,1.50)); // output: 25.8

From 04fc458c4084aa31cd370354d23287c1847be6d1 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 3 Feb 2026 15:46:26 +0000
Subject: [PATCH 19/22] practicing

---
 Sprint-2/4-mandatory-interpret/time-format.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index 4c1177be3..fa816a304 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -17,7 +17,7 @@ function formatTimeDisplay(seconds) {
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-// =============> pad is called 3 times — once each for hours, for minutes andvfor seconds.
+// =============> pad is called 3 times — once each for hours, for minutes and for seconds.
 
 
 // Call formatTimeDisplay with an input of 61, now answer the following:

From 4c7d3bdcd4b5f98cc0ea9d949a9400fed9315b42 Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 3 Feb 2026 21:17:15 +0000
Subject: [PATCH 20/22] practicing

---
 Sprint-2/4-mandatory-interpret/time-format.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index fa816a304..7b314ef9c 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -24,9 +24,9 @@ function formatTimeDisplay(seconds) {
 
 // b) What is the value assigned to num when pad is called for the first time?
 // =============> The first call is for totalHours, and when you call formatTimeDisplay(61), the value of totalHours is:
-//totalHours = (61 - 1) / 60 = 60 / 60 = 1, remainingMinutes = 1
-//totalHours = totalMinutes - remainingMinutes = 1 - 1 = 0
-// So, num = 0 for the first pad call.
+// remainingSeconds = 61%60 = 1
+// totalMinutes = (61-1)/60 = 1 remainingMinutes = 1%60 =1
+// totalHours =(1-1)/60 = 0 so the value assigned to num is 0 when pad is called for the first time
 
 // c) What is the return value of pad is called for the first time?
 // =============> The return value is "00" because pad(0) results in "00" using .padStart(2, "0").

From db6c1bb93e592d41328c5e8815cf97f4f230dade Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Tue, 3 Feb 2026 21:45:12 +0000
Subject: [PATCH 21/22] practicing

---
 Sprint-2/5-stretch-extend/format-time.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-2/5-stretch-extend/format-time.js b/Sprint-2/5-stretch-extend/format-time.js
index 527a98d44..cb733f866 100644
--- a/Sprint-2/5-stretch-extend/format-time.js
+++ b/Sprint-2/5-stretch-extend/format-time.js
@@ -26,7 +26,7 @@ console.assert(
  
 // i put this function for test in console, chrome but it showed undefined then i put 12:00 and the output is:Uncaught SyntaxError: 
 // Unexpected token.so the function is not workable and has some bugs.Unfortunately, i can not work out by myself, i went to chatGpt which 
-// explained the detail to me. function format12HourClock(time) does not work right because it does not work for 12:00, 24:00 d not for
+// explained the detail to me. function format12HourClock(time) does not work right because it does not work for 12:00, 24:00 does not for
 // minutes either. The right function should be:
 
 function formatAs12HourClock(time) {

From 3d72d5bca54f6cf9dd1f169b37ae0061ae556d6a Mon Sep 17 00:00:00 2001
From: pathywang <pathywang@gmail.com>
Date: Sat, 7 Feb 2026 14:51:44 +0000
Subject: [PATCH 22/22] commit

---
 Sprint-2/1-key-errors/0.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 1a8acd4d7..b08f50d84 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -13,7 +13,7 @@ function capitalise(str) {
 // my new code:
 
 function capitalise(str) {
-    return(`${str[0].toUpperCase()}${str. slice(1)}`)
+    return `${str[0].toUpperCase()}${str. slice(1)}`
 }
 console.log(capitalise("morning"))
 console.log(capitalise("heavy"))