add my answers to 3-mandatory-interpret/3-to-pounds.js

Author: Temceo

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

@@ -22,20 +22,20 @@ console.log(result);
 // c) Using documentation, explain what the expression movieLength % 60 represents
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
 
-// Martin answer - the expression movieLength % 60 uses the modulus operator which extracts the value remaining seconds after movieLength is divided by 60
+// Martin answer - the expression movieLength % 60 uses the modulo operator which extracts the value remaining seconds after movieLength is divided by 60
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
 
 // Martin answer - the expression totalMinutes = (movieLength - remainingSeconds) / 60 subtracts remaining seconds from movieLength (total length of movie in seconds) and divides the result by 60 (representing seconds in one minute) to return the total number of minutes
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
 
-// Martin answer - result represents a formatted express of the movie duration as hours, minutes and seconds.  A better name for this variable is formattedMovie
+// Martin answer - result represents a formatted express of the movie duration as hours, minutes and seconds.  A better name for this variable is formattedMovieDuration
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
 
 /* - Martin answer - it works for numerical numbers I have tried, positive and negative, but in the real world you would want to prevent entry of negative numbers.  
-I have tried adding trailing zeros (8784.00), but JavaScript ignores them.  
+I have tried adding trailing zeros (8784.00), but JavaScript automatically converts them to a number - 8784.  
 I have tried converting it to a string ("8784" or "8784.00"), but I get the same results as JavaScript automatically converts them to a number.
 Enter text returns all values as NaN - NaN:NaN:NaN
 

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

@@ -6,6 +6,7 @@ const penceStringWithoutTrailingP = penceString.substring(
 );
 
 const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+
 const pounds = paddedPenceNumberString.substring(
   0,
   paddedPenceNumberString.length - 2
@@ -25,3 +26,17 @@ console.log(`£${pounds}.${pence}`);
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"
+
+// MARTIN ANSWERS BELOW
+/*
+ 1. const penceString = "399p" - initialises a string variable with the value of "399p"
+ 2. const penceStringWithoutTrailingP = penceString.substring(0,penceString.length - 1) - removes the trailing p so that the value of penceStringWithoutTrailingP is "399"
+ 3. const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0") pads the value to a minimum of 3 spaces, with 0 being added if the value is less than 3 characters. In this case holding there are 3 characters - "399". 
+ 4. const pounds = paddedPenceNumberString.substring(0,paddedPenceNumberString.length - 2); - uses the substring method to extract the first value from paddedPenceNumberString and assign it to the variable pounds.  In this case the first value is "3"
+ 5. const pence = paddedPenceNumberString
+  .substring(paddedPenceNumberString.length - 2)
+  .padEnd(2, "0");
+  - this uses the substring method to extract the last 2 values in paddedPenceNumberString, followed immediately with the padEnd method which adds zeros if the number of characters is less than 2 spaces.  In this case, the value of "99" is assigned to the pence variable
+
+ 6. console.log(`£${pounds}.${pence}`) is a log of the variables pounds and pence in a formatted string which will print the value - "£3.99"
+*/