Completed 4 key exercises

Author: ausiejute

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

@@ -4,3 +4,7 @@ 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
+
+// "=" is an assignment operator and so what line 3 is doing,
+//  is the new value is being assigned to the variable "count",
+//  which in this case is by using an expression

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

@@ -5,6 +5,8 @@ const 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.
 
-const initials = ``;
+let initials = firstName.charAt(0) + middleName.charAt(0) + lastName.charAt(0);
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn
+
+console.log(initials);

Sprint-2/1-key-exercises/3-paths.js

@@ -12,12 +12,22 @@
 const filePath = "/Users/mitch/cyf/Module-JS1/week-1/interpret/file.txt";
 const lastSlashIndex = filePath.lastIndexOf("/");
 const base = filePath.slice(lastSlashIndex + 1);
-console.log(`The base part of ${filePath} is ${base}`);
+//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 = ;
+// https://www.google.com/search?q=slice+mdn
 
-// https://www.google.com/search?q=slice+mdn
+const lastDotIndex = filePath.lastIndexOf(".");
+const ext = filePath.slice(lastDotIndex + 1);
+//or, const ext = filePath.slice(-3)
+
+//const firstSlashIndex = filePath.indexOf("/");
+//const dir = filePath.slice(firstSlashIndex + lastSlashIndex);
+//const dir = filePath.slice(0 + lastSlashIndex);
+//const dir = filePath.slice(0 + (lastSlashIndex - 1));
+//const dir = filePath.slice(0 + (lastSlashIndex - 44));
+const dir = filePath.slice(0, lastSlashIndex + 1);
+
+console.log(dir);

Sprint-2/1-key-exercises/4-random.js

@@ -7,3 +7,7 @@ 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);
+// This expression uses a function that returns a random number between (min)1 and (max)100.
+// So every time I ran the program, it generated a different result (between 1 and 100)