Update audio.js

audio.js

@@ -1,3 +1,30 @@
+function validateSignup() {
+    var username = document.forms["signupForm"]["username"].value;
+    var password = document.forms["signupForm"]["password"].value;
+    var email = document.forms["signupForm"]["email"].value;
+
+    if (username === "" || password === "" || email === "") {
+      alert("Please enter all the required fields");
+      return false;
+    }
+
+    var existingUsernames = ['user1', 'user2', 'user3'];
+    if (existingUsernames.includes(username)) {
+      alert("Username already exists. Please choose a different username");
+      return false;
+    }
+
+    var existingEmails = ['user1@example.com', 'user2@example.com', 'user3@example.com'];
+    if (existingEmails.includes(email)) {
+      alert("Email already exists. Please enter a different email address");
+      return false;
+    }
+
+    // If all validations pass, you can proceed with submitting the form
+    return true;
+}
+
+
 function validateLogin() {
     var username = document.forms["loginForm"]["username"].value;
     var password = document.forms["loginForm"]["password"].value;