how can help we with big sale of javacript excersie?

Question

I complet one task but when I write another code it not accept what I should do to solve it

Answer 1

give link, description, specific question, and at least your attempt...

Answer 2

I don't get where the parseInt(readLine(), 10); part comes from.

Answer 3

this is the solution.
function main() {

var oldPrice = parseInt(readLine(),10);
console.log(oldPrice/100*80);

}

Answer 4

Time to go shopping!

Everything in the store has been discounted by 20%.

You are given a program that takes the price of an item as input. Complete the program so that it outputs the discounted price to the console.

Sample Input
100

Sample Output
80

//so we don’t overwhelm you, we’ve hidden the code that executes the input
function main() {
var oldPrice = parseInt(readLine(), 10)
//your code goes here
}

^That is the problem and I am also stuck...
I tried like this:

function main(){
var oldPrice = parseInt(readLine(),10)
var percentage= (oldPrice*20/100);
var newPrice =oldPrice - percentage;
console.log(newPrice);

^It worked for 1 case but ask for at least 2 more different input and outputs (that was not in the question and also has 2 more "secret" answers). So I wondered if there is a way to make this var oldPrice has different values, I tried to give different values after the console.log and tested if the value changed but broke the code hahaha So please 🆘

Answer 5

function main() {
var oldPrice = parseInt(readLine(), 10)
// your code goes here
var newPrice=
oldPrice*80/100
console.log(newPrice)

}

Answer 6

function main() {

var oldPrice = parseInt(readLine(), 10)
var discount = oldPrice * 20/100
var newPrice = oldPrice - discount
console.log(newPrice)

}

I just found the discount first, and I deducted the discount from the old price. That gave me the new price. Simple