Update script.js

script.js

@@ -8,20 +8,53 @@ async function convertCurrency() {
 
     if (amount && fromCurrency && toCurrency) {
         try {
-            // Gunakan API dengan API key yang valid
+            // Menggunakan API dengan API key yang benar
             const response = await fetch(`https://v6.exchangerate-api.com/v6/3ebe2ccf9eeea2aaef280201/latest/${fromCurrency}`);
             const data = await response.json();
+
+            if (data.result === 'error') {
+                throw new Error('Error fetching exchange rates!');
+            }
+
             const rate = data.rates[toCurrency];
             const convertedAmount = (amount * rate).toFixed(2);
 
             // Menampilkan hasil konversi
             result.innerHTML = `${amount} ${fromCurrency} = ${convertedAmount} ${toCurrency}`;
 
-            // Sembunyikan tombol Convert setelah konversi otomatis
+            // Menyembunyikan tombol Convert setelah konversi otomatis
             convertBtn.style.display = 'none';
         } catch (error) {
             result.innerText = "Error fetching exchange rates!";
             console.error('Error fetching exchange rates:', error);
         }
     }
-}
+}
+
+// Fungsi untuk menukar mata uang From dan To
+function swapCurrencies() {
+    const fromCurrency = document.getElementById('from-currency');
+    const toCurrency = document.getElementById('to-currency');
+
+    // Tukar nilai mata uang
+    const temp = fromCurrency.value;
+    fromCurrency.value = toCurrency.value;
+    toCurrency.value = temp;
+
+    // Lakukan konversi otomatis setelah swap
+    convertCurrency();
+}
+
+// Event listener untuk input amount agar otomatis konversi
+document.getElementById('amount').addEventListener('input', convertCurrency);
+
+// Event listener untuk perubahan mata uang (From dan To) agar tombol Convert muncul kembali
+document.getElementById('from-currency').addEventListener('change', () => {
+    document.getElementById('convert-btn').style.display = 'block';
+    document.getElementById('result').innerHTML = '';
+});
+
+document.getElementById('to-currency').addEventListener('change', () => {
+    document.getElementById('convert-btn').style.display = 'block';
+    document.getElementById('result').innerHTML = '';
+});