Completed mandatory interpretation tasks in the folder 3

Author: ausiejute

Sprint-2/3-mandatory-interpret/1-percentage-change.js

@@ -2,7 +2,7 @@ let carPrice = "10,000";
 let priceAfterOneYear = "8,543";
 
 carPrice = Number(carPrice.replaceAll(",", ""));
-priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
 
 const priceDifference = carPrice - priceAfterOneYear;
 const percentageChange = (priceDifference / carPrice) * 100;
@@ -12,11 +12,12 @@ 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
-
+// 4, 5, 8
 // 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 was a syntax error, it can be fixed by adding the missing part (1 of 2 parentheses)
 // c) Identify all the lines that are variable reassignment statements
-
+// 4, 5
 // d) Identify all the lines that are variable declarations
-
+// 1, 2
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+// It turns/converts a string into a number by removing the comma and quotation marks (since they are non-number values)

Sprint-2/3-mandatory-interpret/2-time-format.js

@@ -12,14 +12,18 @@ console.log(result);
 // For the piece of code above, read the code and then answer the following questions
 
 // a) How many variable declarations are there in this program?
-
+// 6
 // b) How many function calls are there?
-
+// 5
 // c) Using documentation, explain what the expression movieLength % 60 represents
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
+// The remainder operator calculates the remainder of movie in seconds (it does it by dividing the number by 60)
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
-
+// total minutes (in seconds) - remaining seconds = remaining seconds. Then converts the seconds into minutes
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
-
+// It represents how much of the movie is left to watch. Maybe something like remainderOfTheMovie
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+// It won't work with all values. Most importantly, the value must be strictly numeric and positive
+
+console.log(result);

Sprint-2/3-mandatory-interpret/3-to-pounds.js

@@ -2,13 +2,13 @@ const penceString = "399p";
 
 const penceStringWithoutTrailingP = penceString.substring(
   0,
-  penceString.length - 1
+  penceString.length - 1,
 );
 
 const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
 const pounds = paddedPenceNumberString.substring(
   0,
-  paddedPenceNumberString.length - 2
+  paddedPenceNumberString.length - 2,
 );
 
 const pence = paddedPenceNumberString
@@ -24,4 +24,12 @@ console.log(`£${pounds}.${pence}`);
 // Try and describe the purpose / rationale behind each step
 
 // To begin, we can start with
-// 1. const penceString = "399p": initialises a string variable with the value "399p"
+// 1. const penceString = "399p": initializes a string variable with the value "399p"
+// 3-6. const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1);
+// : initializes a variable, the value of which is turned to numerical by removing the letter "p".
+// 8. const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+// Here the padstart function turns "399" string into 399 number (it could add some zeroes in front, but here it serves as a converter)
+// 9-12. const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2);
+// Here the goal is to initialize a variable of Pounds (with the value of 3), by splitting it from 99, and it's done using the substring method
+// 14-16. const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0");
+// Here the pence variable is introduced with the value of 99 and it's done by taking the 399 and removing 3 using substring and padEnd methods.