import { Component, OnInit } from '@angular/core'; import { NgForm } from '@angular/forms'; import { UserService } from 'src/app/services/user.service'; @Component({ selector: 'app-login', templateUrl: './login.component.html', styleUrls: ['./login.component.css'] }) export class LoginComponent implements OnInit { emailid: string; passWord: String; isFormSubmitted : boolean; login(loginForm : NgForm) { if (loginForm.invalid) { return; } this.isFormSubmitted=true; if (this.emailid=="sooraj@mail.com" && this.passWord=="1234") { alert("Correct Credentials..."); } else { alert("Invalid Credentials...") } } constructor(private _userService:UserService) { this.isFormSubmitted=false; } ngOnInit(): void { } }