@@ -2,7 +2,7 @@ let carPrice = "10,000";
22let priceAfterOneYear = "8,543" ;
33
44carPrice = Number ( carPrice . replaceAll ( "," , "" ) ) ;
5- priceAfterOneYear = Number ( priceAfterOneYear . replaceAll ( "," "" ) ) ;
5+ priceAfterOneYear = Number ( priceAfterOneYear . replaceAll ( "," , "" ) ) ;
66
77const priceDifference = carPrice - priceAfterOneYear ;
88const percentageChange = ( priceDifference / carPrice ) * 100 ;
@@ -12,11 +12,22 @@ console.log(`The percentage change is ${percentageChange}`);
1212// Read the code and then answer the questions below
1313
1414// a) How many function calls are there in this file? Write down all the lines where a function call is made
15+ // 5
1516
1617// 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?
17-
18+ //The error came from line 5
19+ //Because arguments inside replaceAll() were not separated properly
20+ //After fixing the comma, the program worked
21+ //Output became correct (14.57)
1822// c) Identify all the lines that are variable reassignment statements
19-
23+ // line 4 and 5
2024// d) Identify all the lines that are variable declarations
25+ // line 1,2,7 and 8
2126
2227// e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
28+ // Number(carPrice.replaceAll(",", "")) does two jobs:
29+
30+ //replaceAll(",", "") → removes the commas from the string
31+ //"10,000" becomes "10000"
32+ //Number(...) → converts the cleaned string into a real number
33+ //"10000" becomes 10000
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