Finished the first 4 key exercises

Author: Diana Ausiejute

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

@@ -4,3 +4,6 @@ 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 an expression

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

@@ -5,6 +5,10 @@ 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 +12,26 @@
 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);
+
+
+
+//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 2 methods in order to create a random number between (min)1 and (max)100

Sprint-2/2-mandatory-errors/0.js

@@ -1,2 +1,2 @@
-This is just an instruction for the first activity - but it is just for human consumption
-We don't want the computer to run these 2 lines - how can we solve this problem?
+// This is just an instruction for the first activity - but it is just for human consumption
+// We don't want the computer to run these 2 lines - how can we solve this problem? 

Sprint-2/2-mandatory-errors/1.js

@@ -2,3 +2,6 @@
 
 const age = 33;
 age = age + 1;
+
+// the error is in line 4. It's a "TypeError: Assignment to constant variable", which happened because the value to 
+// a constant can only be assigned once (as it's )

Sprint-2/2-mandatory-errors/2.js

@@ -3,3 +3,6 @@
 
 console.log(`I was born in ${cityOfBirth}`);
 const cityOfBirth = "Bolton";
+
+// an error in line 4, "ReferenceError: Cannot access 'cityOfBirth' before initialization", which proves my assumption that
+// the value of cityOfBirth should have been assigned prior to trying to print the string