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const amountInput = document.getElementById('amount');
const fromCurrency = document.getElementById('fromCurrency');
const toCurrency = document.getElementById('toCurrency');
const swapButton = document.getElementById('swapButton');
const convertButton = document.getElementById('convertButton');
const resultDiv = document.getElementById('result');
// Status konversi otomatis
let autoConvert = false;
// Tombol Convert ditekan
convertButton.addEventListener('click', () => {
autoConvert = true; // Aktifkan auto-convert
convertCurrency(); // Lakukan konversi
convertButton.style.display = 'none'; // Sembunyikan tombol Convert
});
// Swap mata uang
swapButton.addEventListener('click', () => {
const temp = fromCurrency.value;
fromCurrency.value = toCurrency.value;
toCurrency.value = temp;
if (autoConvert) {
convertCurrency(); // Konversi otomatis saat swap
} else {
clearResult(); // Hapus hasil jika auto-convert tidak aktif
}
});
// Pantau perubahan pada input dan dropdown
[amountInput, fromCurrency, toCurrency].forEach((element) => {
element.addEventListener('input', () => {
if (autoConvert) {
convertCurrency(); // Konversi otomatis saat ada input
}
});
element.addEventListener('change', () => {
autoConvert = false; // Nonaktifkan auto-convert
convertButton.style.display = 'block'; // Tampilkan tombol Convert
clearResult(); // Hapus hasil sebelumnya
});
});
// Fungsi konversi
async function convertCurrency() {
const amount = parseFloat(amountInput.value);
const from = fromCurrency.value;
const to = toCurrency.value;
// Validasi input
if (!amount || amount <= 0) {
resultDiv.innerHTML = 'Please enter a valid amount.';
return;
}
try {
const apiKey = '3ebe2ccf9eeea2aaef280201';
const url = `https://v6.exchangerate-api.com/v6/${apiKey}/latest/${from}`;
const response = await fetch(url);
const data = await response.json();
if (data.result === 'success') {
const rate = data.conversion_rates[to];
const convertedAmount = (amount * rate).toFixed(2);
resultDiv.innerHTML = `${amount} ${from} = ${convertedAmount} ${to}`;
} else {
resultDiv.innerHTML = `Error: ${data['error-type']}`;
}
} catch (error) {
resultDiv.innerHTML = 'Error fetching conversion rate.';
console.error(error);
}
}
// Fungsi untuk menghapus hasil konversi
function clearResult() {
resultDiv.innerHTML = '';
}
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