diff --git a/javascript/929-Unique-Email-Addresses.js b/javascript/929-Unique-Email-Addresses.js
new file mode 100644
index 000000000..f294efa8a
--- /dev/null
+++ b/javascript/929-Unique-Email-Addresses.js
@@ -0,0 +1,11 @@
+var numUniqueEmails = function(emails) {
+  const valid=emails.map(email=>{
+       const [local, domain] = email.split('@');
+       return local.split('+').shift().split('.').join('')+'@'+domain;
+   });
+   const set=new Set(valid)
+    
+    return set.size
+      
+    
+};