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

	modified:   Sprint-1/1-key-exercises/3-paths.js
	modified:   Sprint-1/1-key-exercises/4-random.js

Author: AdnaanA

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

@@ -5,7 +5,14 @@ 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 = ``;
+// You can use the .charAt() method of strings to get a character at a specific position in a string.
+// The first character is at position 0, the second at position 1, and so on.
+
+
+let initials = firstName.charAt(0) + middleName.charAt(0) + lastName.charAt(0);
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn
 
+// Log the initials variable to the console
+console.log(initials);
+

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

@@ -17,7 +17,20 @@ 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 = ;
+// The dir part is everything before the base part
+// The ext part is everything after the last "." in the base part
+
+// You can use the .lastIndexOf() method of strings to find the position of the last occurrence of a specific character in a string.
+// For the dir part, you need to find the position of the last "/" in the filePath string.
+// For the ext part, you need to find the position of the last "." in the base string.
+
+const dir = filePath.slice(0, lastSlashIndex + 1);  // this will include the last "/"
+// if you don't want the last "/", use lastSlashIndex instead of lastSlashIndex + 1
+
+const ext = base.slice(base.lastIndexOf("."));  // this will include the "."
+// if you don't want the ".", use filePath.lastIndexOf(".") + 1 instead of filePath.lastIndexOf(".")
+
+console.log(`The dir part of ${filePath} is ${dir}`);
+console.log(`The ext part of ${filePath} is ${ext}`);
 
 // https://www.google.com/search?q=slice+mdn

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

@@ -4,6 +4,22 @@ const maximum = 100;
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 
 // In this exercise, you will need to work out what num represents?
+// num is a variable that stores a random integer between minimum and maximum.
+// the num variable is calculated using the Math.random() function, which generates a random floating-point number between 1 and 100.
+
 // Try breaking down the expression and using documentation to explain what it means
+// const num stores the result of the expression on the right-hand side of the equals sign
+// the = expression is used to assign a value to a variable
+// the expression (maximum - minimum + 1) calculates the range of numbers between minimum and maximum.
+// adding minimum shifts the range to start from the minimum value instead of 0.
+
 // It will help to think about the order in which expressions are evaluated
+// 1. (maximum - minimum + 1) is evaluated first, resulting in 100
+// 2. Math.random() is called, generating a random floating-point number between 0 (inclusive) and 1 (exclusive)
+// 3. The result of Math.random() is multiplied by the result of (maximum - minimum + 1), scaling the random number to the desired range    
+// 
+
 // Try logging the value of num and running the program several times to build an idea of what the program is doing
+// The running  the the program several times you can see that the program is generating a random number between 1 and 100.
+
+console.log(num);