changes to review

Author: ihortar

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

@@ -7,4 +7,5 @@ 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
-//It takes the current value of count, add 1 to it
+//It takes the current value of count, add 1 to it
+//The one-word programming term is increment.

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

@@ -5,7 +5,7 @@ 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 = `${firstName.charAt()}${middleName.charAt()}${lastName.charAt()} `;
+let initials = `${firstName.charAt(0)}${middleName.charAt(0)}${lastName.charAt(0)} `;
 console.log(initials)
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn

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

@@ -8,4 +8,8 @@ console.log(num)
 // 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
-//results: 4,23,91,46 the program is giving you a random number while math.random give you a random decimal number math.floor rounds the total number up
+//results: 4,23,91,46 the program is giving you a random number while math.random give you a random decimal number math.floor rounds the total number up
+// 1. Math.random() - should produce random decimal number [0,1)
+// 2. Math.random() * (maximum - minimum + 1) - should produce [0,1) * (100-1+1)
+// 3. Math.floor(Math.random() * (maximum - minimum + 1)) - Math.floor() rounds down to the nearest integer so it won't be 88.88 but just 88
+// 4. Math.floor(Math.random() * (maximum - minimum + 1)) + minimum - adds minumin to have an integer between 1 and 100 inclusive. [0,100]

Sprint-1/2-mandatory-errors/4.js

@@ -3,7 +3,7 @@
 
 //answer
 
-const HourClockTime24 = "20:53";
+const hourClockTime24 = "20:53";
 const hourClockTime12 = "08:53";
 
 // you can't start a parameter with the number, also the values did not match logically to the parameter

Sprint-1/3-mandatory-interpret/1-percentage-change.js

@@ -12,7 +12,7 @@ console.log(`The percentage change is ${percentageChange}`);
 // Read the code and then answer the questions below
 
 // a) How many function calls are there in this file? Write down all the lines where a function call is made
-//4,5,11
+//4,5,10 (five)
 // b) Run the code and identify the line where the error is coming from - why is this error occurring? How can you fix this problem?
 //line 5, added come before ""
 // c) Identify all the lines that are variable reassignment statements

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

@@ -20,8 +20,8 @@ console.log(result);
 //The remainder (%) operator returns the remainder left over when one operand is divided by a second operand. It always takes the sign of the dividend.
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
-//math expression
+//The total number of whole minutes in the movie
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
-//maybe timeLeft or similar
+//timeInHMS
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
 //

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

@@ -14,7 +14,7 @@ const pounds = paddedPenceNumberString.substring(
 //4. Extracts everything except the last 2 digits of paddedPenceNumberString
 const pence = paddedPenceNumberString
   .substring(paddedPenceNumberString.length - 2)
-  .padEnd(2, "0");
+  // .padEnd(2, "0");
 //5. takes the last 2 digits as the pence from paddedPenceNumberString
 console.log(`£${pounds}.${pence}`);
 //6. Prints the formatted pounds-and-pence value

Sprint-1/4-stretch-explore/chrome.md

@@ -15,4 +15,4 @@ What effect does calling the `alert` function have?
 Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`.
 //shows a pop-up to enter a name / stores and shows name
 What effect does calling the `prompt` function have? //shows pop-up form
-What is the return value of `prompt`? //if myName is set returns myName value
+What is the return value of `prompt`? //if myName is set returns myName value (It returns the text that the user types into the input box.)