<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" c>
<meta name="viewport" c initial-scale=1.0">
<title>Document</title>
</head>
<body>
<input type="number" placeholder="ile km? (2zł za 1km)" id="km">
<select id="sos">
<option value='5'>1 sos = 5zł</option>
<option value='10'>2 sos = 10zł</option>
<option value='15'>3 sos = 15zł</option>
<option value='0'>bez sosów</option>
</select>
<select id="napoj">
<option value='0'>brak - 0zł</option>
<option value='5'>pepsi - 5zł</option>
<option value='10'>piwo - 10zł</option>
</select>
<p id="sd">Zamówienie wynosi: </p>
<button >Oblicz</button>
[removed]
function Oblicz() {
let x = document.querySelector('#km').value * 2
console.log(x)
let y = parseInt(document.querySelector('#sos').value )
console.log(y)
let z = parseInt(document.querySelector('#napoj').value)
console.log(z)
let wynik = document.querySelector('#sd')
wynik[removed]= `Zamówienie wynosi: ${x+y+z}`
}
[removed]
</body>
</html>
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