applying the feedback i got from mentor

Author: Abduhasen

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

@@ -1,15 +1,12 @@
-const minimum = 1;
-const maximum = 100;
-
+const [min, max] = [1, 100];
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 
 // 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
 
-/*num represent any value between 1 to 100.
+/*num represents a number in [1, 100] and Math.random() returns a number in [0, 1).
 Math.floor is a method that rounds a number down to the nearest whole number.
-Math.random is a method returning any number that is greater than or equal to 0 and less than 1.
-first of all i will try to get a value from 0 to less than 1 from Math.random and multiple it by 100
+first of all i will try to get a value [0, 1) from Math.random and multiple it by 100
 and apply Math.floor to the result which will give me the integer number and then add the minimum value i.e. 1  */

Sprint-1/2-mandatory-errors/3.js

@@ -1,5 +1,5 @@
-const cardNumber = "4533787178994213";
-const last4Digits = cardNumber.slice(-4);
+const cardNumber = 4533787178994213;
+const last4Digits = cardNumber.toString().slice(-4);
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working

Sprint-1/3-mandatory-interpret/2-time-format.js

@@ -26,7 +26,7 @@ console.log(result);
 //This expression calculates the total full minutes in the movie by removing leftover seconds and converting seconds to minutes.
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
-//result represent the total movie length using hours,minutes and seconds,the better name can be totalMovieDuration.
+//result represent the total movie length using hours,minutes and seconds,the better name can be movieRunTime.
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
 /*the code works for different values of movieLength it present the input movieLength by calculating the remainder and subtracting 

Sprint-1/3-mandatory-interpret/3-to-pounds.js

@@ -1,4 +1,4 @@
-const penceString = "0p";
+const penceString = "340210p";
 
 const penceStringWithoutTrailingP = penceString.substring(
   0,
@@ -11,9 +11,9 @@ const pounds = paddedPenceNumberString.substring(
   paddedPenceNumberString.length - 2
 );
 
-const pence = paddedPenceNumberString.substring(
-  paddedPenceNumberString.length - 2
-);
+const pence = paddedPenceNumberString
+  .substring(paddedPenceNumberString.length - 2)
+  .padEnd(2, "0");
 console.log(`£${pounds}.${pence}`);
 
 // This program takes a string representing a price in pence