Better Validations

src/app/shared/validators/validate-email.validator.ts

@@ -0,0 +1,11 @@
+import {AbstractControl} from "@angular/forms";
+
+export function ValidateEmailValidator(control: AbstractControl) {
+    const email = control.value;
+    const emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/g;
+    const emailValid = emailRegex.test(email);
+    if (!emailValid) {
+        return { invalidEmail: true };
+    }
+    return null;
+}

src/app/shared/validators/validate-not-empty.validator.ts

@@ -0,0 +1,9 @@
+import {AbstractControl} from "@angular/forms";
+
+export function ValidateNotEmptyValidator(control: AbstractControl) {
+    const value = control.value;
+    if (!value || value.length === 0) {
+        return { invalidNotEmpty: true };
+    }
+    return null;
+}

src/app/shared/validators/validate-password.validator.ts

@@ -0,0 +1,11 @@
+import {AbstractControl} from "@angular/forms";
+
+export function ValidatePasswordValidator(control: AbstractControl) {
+    var password = control.value;
+    var passwordRegex = /^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$/g;
+    var passwordValid = passwordRegex.test(password);
+    if (!passwordValid) {
+        return { invalidPassword: true };
+    }
+    return null;
+}