Javascript discount calculator

Question

Can’t find the issue for the life of me. What am i doing wrong?

function main(input) {
var oldPrice = parseInt(input, 10)
// Your code here
var discount = (0.2 * oldPrice);
var oldPrice = (oldPrice - discount);
document.log(oldPrice);
}

Answer 1

console.log is used to display something in the console, useful for debbuging purposes. document.write is an evil thing that browsers provide to override the content of a web page, please avoid it. "document" object is only available on browsers, SoloLearn's in-course challenges run in node.js playground, that's why document won't work.

Answer 2

Share your code. Open a new question or link it here if you want.

Sasquatch6ft40 You can send your suggestion using the in-app feedback option. It's in the menu.

Answer 3

Oh, now I can see what you did.
At line 2: inputString should be an empty string:
let inputString = "";

Forget about the given code(it's just boilerplate to take input in node) and focus on the "//your code goes here:" part. Don't change anything else.

Answer 4

document.log ?

Answer 5

ohh console.log or document.write. well whats the difference between those two?

Answer 6

ok.. that kinda makes sense. im stuck on the very next quiz now though, ive already done the whole course and i still feel like they havent explained what i need to know for the challenges in the beginning.

Answer 7

Don't worry. Review the complete lesson where the challenge is located and you'll see what you need to know.

Answer 8

process.stdin.setEncoding('utf-8');
let inputString = 'name = oldpass type text';
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 oldPass = readLine();
var newPass = readLine();
// Your code here
console.log(newPass !== oldPass)
}

just caught the missing semicolon, but it didnt make a difference as thats something else that only seems to matter sometimes.

Answer 9

i got it by changing !== to ===, but i swear i had tried that before i even posted. idk, maybe im too tired to try this tonight. thanks for the help tho man!

Answer 10

is that not a thing? i coulda sworn it had me do that on the last quiz

Answer 11

i’ve been looking for a while now...
it’s the password one, and i can only solve one half the tests or the other half depending on if i use != or ===

Answer 12

it would be extremely helpful if they changed the color of text that referred to nameholders. like, var name = hi, if name was a different color so you would know you dont need the word ‘name’ to specify the type of variable, but that it’s whatever you want to name that variable.

Answer 13

i didn’t change anything else. :(
that’s definitely not cool. ill see if that fixes it.

nah, that returned them all as failed. if it helps, the ones i can see that i failed failed bc of a capitalized letter. i thought doing !== instead of != would fix it, but it didnt.