ZA | ITP-May-2025 | Praise Magidi | Sprint-1 | Module-Structuring-and-Testing-Data

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

@@ -4,3 +4,5 @@ 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 assigning another different value to count by adding 1 to its current value. The = is not working like an equalizer it is
+the count value. 

Sprint-1/1-key-exercises/2-initials.js

@@ -5,7 +5,13 @@ let lastName = "Johnson";
 // Declare a variable called initials that stores the first character of each string.
 // This should produce the string "CKJ", but you must not write the characters C, K, or J in the code of your solution.
 
-let initials = ``;
+let initials = firstName[0] + middleName[0] + lastName[0] ;
+
+console.log(initials);
+
+
+
+
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn
 

Sprint-1/1-key-exercises/3-paths.js

@@ -17,7 +17,9 @@ console.log(`The base part of ${filePath} is ${base}`);
 // Create a variable to store the dir part of the filePath variable
 // Create a variable to store the ext part of the variable
 
-const dir = ;
-const ext = ;
+const dir = filePath.slice(0, lastSlashIndex);
+const ext = filePath.slice(-4);
+
+console.log(`The directory of the file path is ${dir} and the extension is ${ext}`)
 
 // https://www.google.com/search?q=slice+mdn

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

@@ -7,3 +7,9 @@ const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 // Try breaking down the expression and using documentation to explain what it means
 // 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
+console.log(num)
+
+When breaking down the expression it starts by the third brackets where maximum - minimum + 1, maximum represents a 
+100 and minimum represents a 1. From there you multiply the answer by Math.random, where a random number between 0 
+and 1 is selected randomly. Another minimum is added to that answer. Now Math.floor rounds the answer to the nearest 
+whole number, and that value is what you get when you run the code.

Sprint-1/2-mandatory-errors/0.js

@@ -1,2 +1,3 @@
 This is just an instruction for the first activity - but it is just for human consumption
-We don't want the computer to run these 2 lines - how can we solve this problem?
+We don't want the computer to run these 2 lines - how can we solve this problem?
+We can make the 2 lines comments by adding two slashes before the sentence

Sprint-1/2-mandatory-errors/1.js

@@ -1,4 +1,6 @@
 // trying to create an age variable and then reassign the value by 1
 
-const age = 33;
+
+let age =33;
 age = age + 1;
+console.log(age)

Sprint-1/2-mandatory-errors/2.js

@@ -1,5 +1,8 @@
 // Currently trying to print the string "I was born in Bolton" but it isn't working...
 // what's the error ?
 
-console.log(`I was born in ${cityOfBirth}`);
 const cityOfBirth = "Bolton";
+console.log(`I was born in ${cityOfBirth}`);
+
+
+//It is not working because the const was declared after the console.log

Sprint-1/2-mandatory-errors/3.js

@@ -1,9 +1,14 @@
-const cardNumber = 4533787178994213;
+const cardNumber = "4533787178994213";
 const last4Digits = cardNumber.slice(-4);
+console.log(`Last 4 digits are ${last4Digits}`)
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working
 // Before running the code, make and explain a prediction about why the code won't work
 // Then run the code and see what error it gives.
 // Consider: Why does it give this error? Is this what I predicted? If not, what's different?
 // Then try updating the expression last4Digits is assigned to, in order to get the correct value
+
+//I put my answers into comments because my code was not running when i put them normally because of key words i think.
+//The code will not run because the cardNumber string has no quotation marks also there is no console.log
+//the error I got is that cardNumber.slice is not a function.

Sprint-1/2-mandatory-errors/4.js

@@ -1,2 +1,4 @@
-const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
+const twelveHourClockTime = "20:53";
+const twentyfourhourClockTime = "08:53";
+console.log(twelveHourClockTime)
+console.log(twentyfourhourClockTime)

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

@@ -12,11 +12,17 @@ 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 and 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?
+The error is coming from line 5, I think it is because there is no comma after the first quotation marks. I can fix 
+it by adding the comma between the two quotation marks.
 
 // c) Identify all the lines that are variable reassignment statements
+line 4 and 5
 
 // d) Identify all the lines that are variable declarations
+line 1, 2, 7 and 8
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+It removes commas from the string and then converts the cleaned-up string into an actual number, so we can do math with it.

Sprint-1/3-mandatory-interpret/2-time-format.js

@@ -12,14 +12,24 @@ 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?
+1
 
 // c) Using documentation, explain what the expression movieLength % 60 represents
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
+So it is a remainder operator it gives the remaining value after 2 numbers are divided, here the values are always
+divided by 60 hence "% 60"
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
+The length of the movie previously declared in line 1 will be subtracted by the remaining totalMinutes, that value
+will now be divided by 60
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
-
+the results represent the exact time a movie lasts in Hours, minutes and seconds respectively. Altenatively i would
+call the variable "Total length of a movie"
+
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+The code does not work for all values I think it is because movieLength is declared as a constant therefore it cannot
+be reassigned another value

Sprint-1/3-mandatory-interpret/3-to-pounds.js

@@ -25,3 +25,10 @@ console.log(`£${pounds}.${pence}`);
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"
+In line 3 the function is subtracting the last string character from the string so its now 399 not 399p
+In line 8 the .padStart is making sure that there is always 3 digits 
+In line 9 they are subtracting the last two characters of the string so its not 399 anymore, only 3
+In line 14 substring is making sure there is always 2 characters and pad.End reinforcing that there only is two 
+characters
+console.log is now showing the final results of how much pounds and pence there is.
+

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

@@ -11,8 +11,12 @@ In the Chrome console,
 invoke the function `alert` with an input string of `"Hello world!"`;
 
 What effect does calling the `alert` function have?
+I got a notification pop up saying that the new tab page says Hello World!
 
 Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`.
 
 What effect does calling the `prompt` function have?
+It makes a notification pop up
+
 What is the return value of `prompt`?
+myName

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

@@ -5,12 +5,17 @@ In this activity, we'll explore some additional concepts that you'll encounter i
 Open the Chrome devtools Console, type in `console.log` and then hit enter
 
 What output do you get?
+'console.log'
 
 Now enter just `console` in the Console, what output do you get back?
+console {debug: ƒ, error: ƒ, info: ƒ, log: ƒ, warn: ƒ, …}
 
 Try also entering `typeof console`
 
 Answer the following questions:
 
 What does `console` store?
+detailed information about code and editing options
+
 What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?
+it means running or testing the code rather the `.` is a way of telling the computer exactly what type of console you are reffering to.