LONDON | ITP-2026 | Said Fayaz Sadat | sprint 1 | sprint 1

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 updating the value of count by adding 1 to its current value and then assigning that new value back to count.
+// the assignemt operator (=) is used to assign the result of the expression (count + 1) back to the variable count, effectively updating its value.

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

@@ -5,7 +5,8 @@ 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 = `${firstName[0].toUpperCase()}${middleName[0].toUpperCase()}${lastName[0].toUpperCase()}`;
+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 +17,8 @@ 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 lastDotIndex = filePath.lastIndexOf(".");
+const ext = filePath.slice(lastDotIndex + 1);
 
 // https://www.google.com/search?q=slice+mdn

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

@@ -7,3 +7,12 @@ 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
+
+// breaking down the expressions:
+// num is assigned the value of Math.floor(Math.random() * (maximum - minimum + 1)) + minimum
+// Math.random() generates a random decimal number between 0 (inclusive) and 1 (exclusive)
+// (maximum - minimum + 1) calculates the range of possible values, which is 100 - 1 + 1 = 100
+// Math.random() * (maximum - minimum + 1) scales the random decimal to the range of possible values, resulting in a number between 0 and 100 (exclusive)
+// Math.floor() rounds down the scaled random number to the nearest whole number, giving us an integer between 0 and 99
+// Finally, adding minimum (which is 1) shifts the range from 0-99 to 1-100, resulting in num being a random integer between 1 and 100 (inclusive)
+console.log(num);

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

@@ -1,2 +1,5 @@
-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?
+//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 can use comments to prevent the computer from running these lines of code
+// this is a comment and will not be executed by the computer