JavaScript Code Problem

Question

This is one of the SoloLearn JavaScript code challenges. The goal of the problem is given three inputs (product ID, price and discount), I need to display the current price and the new discounted price. I have accomplished the goal, but 1 out of 5 tests fail and it is consistently the 4th test. Unfortunately I cannot see the input, expected output and actual output, so I have no idea why. I have tried adding Math.round() to the code, but it produces the same results.

I appreciate any and all help. Thank you!

process.stdin.setEncoding('utf-8');
let inputString = '';
let currentLine = 0;
process.stdin.on('data', inputStdin => {
inputString += inputStdin;
});
process.stdin.on('end', _ => {
inputString = inputString.replace(/\s*$/, '')
.split('\n')
.map(str => str.replace(/\s*$/, ''));
main();
});
function readLine() {
return inputString[currentLine++];
}
function main() {
var prodID = readLine();
var price = parseInt(readLine(),10);
var discount = parseInt(readLine(),10);

var prod1= new Product(prodID, price);

console.log(prod1.prodID + " price: " + prod1.price);

//EVERYTHING ABOVE THIS WAS GIVEN IN THE PROBLEM AND IS UNCHANGED. My code is below

prod1.changePrice(discount);

console.log(prod1.prodID + " new price: " + prod1.price);
}

function Product(prodID, price) {
this.prodID = prodID;
this.price = price;
this.changePrice = function(discount) {
this.price = price - (price * discount / 100);
}
};

Answer 1

Try.. Number((the result number).toFixed(2)).. maybe it's persicion issue ..rounding to the second decimal can do it

Answer 2

Thank you for the response! Unfortunately this did not fix the issue. The expected output for the three cases that I can see is rounded to the nearest integer. I tried your suggestion with .toFixed(0) and it did not fix the one failing test either.

Answer 3

In the function 'changePrice' how did the 4 tests even work even though you didn't bindd the 'price' value to the object instance .. I mean the equation in the function, shouldn't it be like this :
this.price = this.price - (this.price * discount /100);
Don't mean to confuse you, but try this out

Answer 4

I’m guessing it worked because the price variable was defined in the main function. I will try that now

Answer 5

Unfortunately that had the same result as the previous: 4/5 tests pass