Add comma to resolve syntax error and answer questions

Author: habohlin

Sprint-2/3-mandatory-interpret/1-percentage-change.js

@@ -2,7 +2,7 @@ let carPrice = "10,000";
 let priceAfterOneYear = "8,543";
 
 carPrice = Number(carPrice.replaceAll(",", ""));
-priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
 
 const priceDifference = carPrice - priceAfterOneYear;
 const percentageChange = (priceDifference / carPrice) * 100;
@@ -11,12 +11,41 @@ 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 function calls are made.
+// Line 4 calls function replaceAll and Number
+// Line 5 calls functions replaceAll and Number
+
+
+
 // 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?
 
+// There is a syntax error. The error says a closing parenthesis is missing, which I think is triggered
+// because a comma in the argument list is missing. I added the comma and the error is resolved.
+
+
+
 // c) Identify all the lines that are variable reassignment statements
 
+// Line 4 reassigning carPrice
+// Line 5 reassigning priceAfterOneYear
+
+
+
 // d) Identify all the lines that are variable declarations
 
+// Line 1 declares carPrice with let
+// Line 2 declares priceAfterOneYear with let
+// Line 7 declares priceDifference with const
+// Line 8 declares percentageChange with const
+
+
+
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+
+// The original carPrice is a string. In order to do math and get a percentage the string needs to be converted
+// into a number first. And before that the string's comma needs to be removed (it's replaced with nothing
+// using replaceAll)