London | 25-ITP-September | Ammad Ur Rehman | Sprint 1 | 03 Complete Sprint 1 Coursework

Sprint-1/1-key-exercises/1-count.js

@@ -5,4 +5,5 @@ count = count + 1;
 // Line 1 is a variable declaration, creating the count variable with an initial value of 0
 // Describe what line 3 is doing, in particular focus on what = is doing
 
-// Line 3 is a reassignment of the variable `count` to its current value plus 1
+// Line 3 is a reassignment of the variable `count` to its current value plus 1.
+// In other words, it increment by 1

Sprint-1/1-key-exercises/4-random.js

@@ -8,8 +8,8 @@ const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 // It will help to think about the order in which expressions are evaluated
 // Try logging the value of num and running the program several times to build an idea of what the program is doing
 
-// num represents a random number in an inclusive range from 1 to 100
+// num represents a random number in the interval [1,100]
 // First, it starts with 100 - 1 + 1, which is equals to 100
-// Secondly, it multiply with Math.random(), which the function returns any number between 0 and 1, inclusive.
+// Secondly, it multiply with Math.random(), which the function returns any number in the interval [0,1]
 // Thirdly, Math.floor() rounds down and returns the largest integer less than or equal to a given number
-// Finally, it adds 1
+// Finally, it adds 1

Sprint-1/3-mandatory-interpret/1-percentage-change.js

@@ -12,7 +12,7 @@ console.log(`The percentage change is ${percentageChange}`);
 // Read the code and then answer the questions below
 
 // a) How many function calls are there in this file? Write down all the lines where a function call is made
-// Line 4, 5
+// Line 4, 5, 10
 
 // b) Run the code and identify the line where the error is coming from - why is this error occurring? How can you fix this problem?
 // It's missing a comma between the arguments at line 5 in replaceAll() method
@@ -24,5 +24,5 @@ console.log(`The percentage change is ${percentageChange}`);
 // Line 1, 2
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
-// Its purpose is to replace a substring with another string, in this case, replaces a command (",") with an empty string ("")
-// In order words, remove the comma (",") in the string
+// Its purpose is to replace a substring with another string and then convert it into a number, in this case, replaces a command (",") with an empty string ("")
+// In other words, remove the comma (",") in the string and then convert it into a number

Sprint-1/4-stretch-explore/chrome.md

@@ -26,4 +26,4 @@ It displays an alert with a textfield where you can enter some text, e.g. John.
 
 What is the return value of `prompt`?
 
-The string returned from the textfield what the user has entered otherwise null.
+The string returned from the textfield what the user has entered otherwise null if the user left it blank.