answer questions

Author: shirinpanahian

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;
@@ -12,11 +12,24 @@ 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
+/*  Number() - line 4 and Line 5
+    replaceAll() - Line 4 and Line 5
+    console.log() - Line 10*/
+
 
 // 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 , There is a comma missing between "," and ""*/
 
 // c) Identify all the lines that are variable reassignment statements
+    /* Line 4 :carPrice = Number(carPrice.replaceAll(",", ""));
+       Line5 : priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
+       carPrice and priceAfterOneYear were already declared on Line 1 and 2 using let */
 
 // d) Identify all the lines that are variable declarations
+       /* Line 1 : let carPrice = "10,000";
+          Line 2 : let priceAfterOneYear = "8,543";
+          Line 7 : const priceDifference = carPrice - priceAfterOneYear;
+          Line 8 : const percentageChange = (priceDifference / carPrice) * 100;*/
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+        /*replaceAll remove all the commas from the string and Number convert string  to the number*/