completed the 1-key-exercises of sprint-1

Author: fayaz551

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 the count variable. The = operator is an assignment operator, which assigns the value on the right (count + 1) to the variable on the left (count). In this case, it takes the current value of count (which is 0), adds 1 to it, and then assigns the result (1) back to count. So after this line executes, count will have a new value of 1.

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] + 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);
+console.log(`The dir part of ${filePath} is ${dir}`);
+const ext = filePath.slice(filePath.lastIndexOf("."));
+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

@@ -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
+
+
+// minimum is 1, maximum is 100
+
+// Math.random() generates a random decimal number between 0 (inclusive) and 1 (exclusive). So it can be any value from 0 up to but not including 1.
+// (maximum - minimum + 1) calculates the range of possible values, which is 100 - 1 + 1 = 100. This means we want to generate a random number between 0 and 99 (inclusive) before adding the minimum value.
+// Math.random() * (maximum - minimum + 1) gives us a random decimal number between 0 (inclusive) and 100 (exclusive). This means it can be any value from 0 up to but not including 100.
+// Math.floor() takes the random decimal number and rounds it down to the nearest whole number. This means we will get an integer value between 0 and 99 (inclusive).
+// Finally, we add the minimum value (1) to the result, which shifts the range from 0-99 to 1-100. So num will be a random integer between 1 and 100 (inclusive).