Sprint 1 coursework 3.1: change const to let

Author: kohanman

Sprint-1/3-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;
@@ -12,11 +12,17 @@ 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
+// lines 4,5 replaceAll() function is called , and then Number() function is called, and then console.log once on line 10
+// so total 5 function calls
 
 // 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?
+// error is in line 5, because of a missing , in replaceAll("," ""), which I will add to fix the problem.
 
 // c) Identify all the lines that are variable reassignment statements
+//lines 4 and 5 are variable reassignment statements
 
 // d) Identify all the lines that are variable declarations
+//lines 1 and 2, as well as 7 and 8 are variable declarations
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+//.replaceAll() is removing the , in carPrice and Number() is turning it from a string into a number