new add relative

src/app/services/commonfunc.service.ts

@@ -0,0 +1,15 @@
+import { Injectable } from '@angular/core';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class CommonfuncService {
+
+  constructor() { }
+
+  validateEmail(email) {
+    var re = /\S+@\S+\.\S+/;
+    return re.test(email);
+  }
+
+}