diff --git a/2.Ex1 Password validation.js b/2.Ex1 Password validation.js
index cd93dbf..b92374a 100644
--- a/2.Ex1 Password validation.js	
+++ b/2.Ex1 Password validation.js	
@@ -32,9 +32,24 @@ The belows are invalids because
   - "tytT3729." is valid as an individual password, but already appeared in the password array
   - "12qw"      doesn't contain uppercase letter, special symbol and less than 5 characters long
 */
+const passwords = ["tytT3729.", "fhD!yrjj", "ttkTuwer3", "DVYYEYY!5", "qwbfj76%", "Pl3!", "tytT3729.", "12qw"];
 
-function validatePasswords(passwords) {}
+var conditions = /(?=\S*\d)(?=\S*[a-z])(?=\S*[A-Z])(?=\S*[#!.$%])\S{5,}/;
 
+let validatePasswords = passwords
+
+.map((password, index) => {
+ 
+    if (conditions.test(password) && passwords.indexOf(password) === index) {
+      return true
+    } else {
+      return false
+    }
+ });
+
+ console.log(validatePasswords)
+
+//expected results is [4] is false
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 const passwords1 = ["Se%5", "TktE.TJTU", "384#HsHF", "dvyyeyy!5", "tryT3729"];
diff --git a/practice2.js b/practice2.js
new file mode 100644
index 0000000..770a006
--- /dev/null
+++ b/practice2.js
@@ -0,0 +1,23 @@
+let passwords = ["tytT3729.", "fhD!yrjj", "ttkTuwer3", "DVYYEYY!5", "qwbfj76%", "Pl3!", "tytT3729.", "12qw", "tytT3728.", "DVYYEYY!5", "tkTuwer3!"];
+
+var conditions = /(?=\S*\d)(?=\S*[a-z])(?=\S*[A-Z])(?=\S*[#!.$%])\S{5,}/;
+
+let validatePasswords = passwords
+
+.map((password, index) => {
+ 
+    if (conditions.test(password) && passwords.indexOf(password) === index) {
+      return true
+    } else {
+      return false
+    }
+ });
+
+ console.log(validatePasswords); 
+
+  //1. regex test
+//   .map((password) => regex.test(password))
+
+  //2. Check duplicate
+  // let results = passwords
+  // .map((password, index) => passwords.indexOf(password) === index)
\ No newline at end of file