1-key-exercises are done.

Author: B3-Bisrat

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

@@ -2,5 +2,8 @@ let count = 0;
 
 count = count + 1;
 
+console.log(count);
+
 // 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 adds 1 to the current value of count. The = sign means we save the new value back into count. Since count started at 0, count + 1 makes it 1

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

@@ -2,10 +2,10 @@ let firstName = "Creola";
 let middleName = "Katherine";
 let lastName = "Johnson";
 
+let initials = firstName[0] + middleName[0] + lastName[0];
+console.log(initials);
+
 // 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 = ``;
-
 // https://www.google.com/search?q=get+first+character+of+string+mdn
-

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

@@ -17,7 +17,10 @@ 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(filePath.lastIndexOf("."));
 
-// https://www.google.com/search?q=slice+mdn
+console.log(dir);
+console.log(ext);
+
+// https://www.google.com/search?q=slice+mdn

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

@@ -4,6 +4,13 @@ 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 creates a random whole number between 1-100 (inclusive).
 // Try breaking down the expression and using documentation to explain what it means
+//maximum-minimum+1 gives us the number of possible values (100-1+1 = 100)
+//Math.random() gives us a random decimal number between 0 (inclusive) and 1 (exclusive)
+//Multiplying Math.random() by 100 gives us a random decimal number between 0 and 100 (exclusive)
+//Math.floor() rounds down the random decimal number to the nearest whole number.
+//Adding minimum to the result gives us a random whole number between minimum and maximum (inclusive)
 // 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);