solving some practice before moving to course work

Author: Jacknguyen4438

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

@@ -1,6 +1,10 @@
 let count = 0;
 
 count = count + 1;
+/* in line three, the variable count is combining the variable count original value of 0 with new value of 1 with the used of plus operator. 
+The equal operator is this case helping to re-assign the new value back to the count variable
+*/
+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

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.slice(0,1)+middleName.slice(0,1)+lastName.slice(0,1);
+console.log(initials);
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn
 

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

@@ -16,8 +16,9 @@ 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 slashIndex = filePath.indexOf("/");
+const dir =filePath.slice(slashIndex + 0, 45) ;
+const ext =filePath.slice(slashIndex + 49, 53);
+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

@@ -3,7 +3,16 @@ const maximum = 100;
 
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 
+console.log(num)
+
 // In this exercise, you will need to work out what num represents?
 // 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
+
+/*Number data type represents any type of number such as integer, float number(decimal number), infinity number, etc...
+In the code at line 4 the num variable are doing math function that generate a integer between variable minimum and maximum value,
+the floor method behind the Math are is main purpose if to help turn value of a float number and round it up to the nearest integer.
+inside the Math.floor parameter the math random method is choosing a random float number between 0 and 1 and have it multiply with the second expression
+to set the range of possible value range from 0 to under 100. The last plus one to make sure the that number stay above 0(0+1) and to 100(99+1);
+*/