answered all questions in 1-percentage-change.js

Author: d-odumosu

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 +12,18 @@ 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
+// There are 3 function calls. line 4 Number() and .replaceAll()
+// line 12 console,log()
 
 // 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?
+//A syntaxError is occurring on line 5, we are missing a "," and a closing ")"
 
 // c) Identify all the lines that are variable reassignment statements
+// line 4 and 5
 
 // d) Identify all the lines that are variable declarations
-
+// line 1, 2, 7, 8
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+/* We are removing the comma, the replaceAll method takes in two arguements, 1 for what to replace and 2 for what to
+replace by, and in this case we are replaceing the comma with an empty string. we wrap the carPrice variable which is a string
+with the Number() function to convert it into a number*/