Update script.js

script.js

@@ -1,21 +1,13 @@
-// Ambil elemen
-const amountInput = document.getElementById('amount');
-const fromCurrency = document.getElementById('fromCurrency');
-const toCurrency = document.getElementById('toCurrency');
-const resultDiv = document.getElementById('result');
-const convertButton = document.createElement('button');
-convertButton.textContent = 'Convert';
-convertButton.type = 'button';
-convertButton.id = 'convertButton';
-document.getElementById('currencyForm').appendChild(convertButton);
+document.getElementById('currencyForm').addEventListener('submit', async function (event) {
+  event.preventDefault();
 
-// Tombol tampil secara default
-let isInitialConversion = true;
+  // Ambil nilai input dari user
+  const amount = document.getElementById('amount').value;
+  const fromCurrency = document.getElementById('fromCurrency').value;
+  const toCurrency = document.getElementById('toCurrency').value;
+  const resultDiv = document.getElementById('result');
 
-async function convertCurrency() {
-  const amount = amountInput.value;
-
-  // Validasi input jumlah
+  // Validasi jumlah yang dimasukkan
   if (!amount || amount <= 0) {
     resultDiv.innerHTML = "Please enter a valid amount!";
     return;
@@ -23,64 +15,64 @@ async function convertCurrency() {
 
   try {
     const apiKey = '3ebe2ccf9eeea2aaef280201'; // API Key
-    const url = `https://v6.exchangerate-api.com/v6/${apiKey}/latest/${fromCurrency.value}`;
+    const url = `https://v6.exchangerate-api.com/v6/${apiKey}/latest/${fromCurrency}`;
 
-    // Ambil data dari API
+    // Mengambil data dari API
     const response = await fetch(url);
     const data = await response.json();
 
-    // Tangani error API
+    // Menangani respon API yang error
     if (data.result === 'error') {
       resultDiv.innerHTML = `Error: ${data['error-type']}`;
     } else {
-      const rate = data.conversion_rates[toCurrency.value];
+      // Menyusun nilai konversi dan menampilkannya
+      const rate = data.conversion_rates[toCurrency];
       const convertedAmount = (amount * rate).toFixed(2);
-      resultDiv.innerHTML = `${amount} ${fromCurrency.value} = ${convertedAmount} ${toCurrency.value}`;
-
-      // Sembunyikan tombol setelah konversi pertama
-      if (isInitialConversion) {
-        convertButton.style.display = 'none';
-        isInitialConversion = false;
-      }
+      resultDiv.innerHTML = `${amount} ${fromCurrency} = ${convertedAmount} ${toCurrency}`;
     }
   } catch (error) {
     resultDiv.innerHTML = "Error fetching conversion rate.";
-    console.error("Error:", error);
+    console.error("Error:", error); // Menampilkan error di konsol
   }
-}
+});
 
-// Fungsi Swap
-document.getElementById('swapButton').addEventListener('click', function () {
+// Logika untuk tombol Swap
+document.getElementById('swapButton').addEventListener('click', async function () {
+  const fromCurrency = document.getElementById('fromCurrency');
+  const toCurrency = document.getElementById('toCurrency');
+  const resultDiv = document.getElementById('result');
+
+  // Tukar nilai antara "From" dan "To"
   const tempCurrency = fromCurrency.value;
   fromCurrency.value = toCurrency.value;
   toCurrency.value = tempCurrency;
 
-  if (amountInput.value && amountInput.value > 0) {
-    convertCurrency(); // Konversi ulang setelah swap
-  }
-});
+  // Ambil nilai input amount
+  const amount = document.getElementById('amount').value;
 
-// Event untuk tombol Convert (klik tombol manual)
-convertButton.addEventListener('click', function () {
-  convertCurrency();
-});
+  // Jika ada jumlah yang dimasukkan, langsung lakukan konversi ulang
+  if (amount && amount > 0) {
+    try {
+      const apiKey = '3ebe2ccf9eeea2aaef280201'; // API Key
+      const url = `https://v6.exchangerate-api.com/v6/${apiKey}/latest/${fromCurrency.value}`;
 
-// Event otomatis konversi setelah jumlah diisi
-amountInput.addEventListener('input', function () {
-  if (!isInitialConversion) {
-    convertCurrency(); // Konversi otomatis
-  }
-});
-
-// Event tampilkan tombol jika mata uang diubah
-fromCurrency.addEventListener('change', function () {
-  convertButton.style.display = 'block'; // Tampilkan tombol
-  isInitialConversion = true; // Reset status awal
-  resultDiv.innerHTML = ""; // Reset hasil
-});
+      // Mengambil data dari API
+      const response = await fetch(url);
+      const data = await response.json();
 
-toCurrency.addEventListener('change', function () {
-  convertButton.style.display = 'block'; // Tampilkan tombol
-  isInitialConversion = true; // Reset status awal
-  resultDiv.innerHTML = ""; // Reset hasil
+      if (data.result === 'error') {
+        resultDiv.innerHTML = `Error: ${data['error-type']}`;
+      } else {
+        const rate = data.conversion_rates[toCurrency.value];
+        const convertedAmount = (amount * rate).toFixed(2);
+        resultDiv.innerHTML = `${amount} ${fromCurrency.value} = ${convertedAmount} ${toCurrency.value}`;
+      }
+    } catch (error) {
+      resultDiv.innerHTML = "Error fetching conversion rate.";
+      console.error("Error:", error);
+    }
+  } else {
+    // Jika tidak ada amount, hapus hasil konversi
+    resultDiv.innerHTML = "";
+  }
 });