\n
can someone please help
\n","author":{"@type":"Person","name":"Rahul Jadhav"},"upvoteCount":0,"answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"So, initially loginForm
is undefined.\nTry to add loginForm?.control?...
The same with error, by default there no errors,
\nAlso should add: errors?.required
Reputation: 37
I am using material UI and reactive form. My application is running properly and I am able to login but in my terminal window i am getting error TS2531: Object is possibly 'null'. I have attache the error screen shot below for the reference and also my login html template and component.
My login.component.html code is
<div class="example-container">
<div class="form-container">
<form [formGroup]="loginForm" (submit)="onSubmit()">
<mat-form-field class="form-field" appearance="outline">
<mat-label> E-mail
</mat-label>
<input matInput formControlName="email" required>
<mat-error *ngIf="loginForm.controls.email.touched && loginForm.controls.email.invalid">
<span *ngIf="loginForm.controls.email.errors.required">This field is mandatory.</span>
<span *ngIf="loginForm.controls.email.errors.pattern">This field is invalid.</span>
</mat-error>
</mat-form-field>
<mat-form-field class="form-field" appearance="outline">
<mat-label> Password
</mat-label>
<input matInput formControlName="password" type="password">
<mat-error *ngIf="loginForm.controls.password.touched && loginForm.controls.password.invalid">
<span *ngIf="loginForm.controls.password.errors.required">This field is mandatory.</span>
</mat-error>
</mat-form-field>
<button mat-raised-button color="primary" type="submit">Log In</button>
</form>
</div>
</div>
My login.component.ts code is
import { Component, OnInit } from '@angular/core';
import { FormBuilder, FormGroup, Validators } from '@angular/forms';
import { ActivatedRoute, Router } from '@angular/router';
import { first } from 'rxjs/operators';
import { NotificationService } from 'src/app/_services';
import { AuthService } from '../auth.service';
import { Login } from '../user';
@Component({
selector: 'app-login',
templateUrl: './login.component.html',
styleUrls: ['./login.component.css']
})
export class LoginComponent implements OnInit {
loginForm!: FormGroup;
loading = false;
submitted = false;
error = '';
emailRegx = /^(([^<>+()\[\]\\.,;:\s@"-#$%&=]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,3}))$/;
constructor(
private formBuilder: FormBuilder,
private route: ActivatedRoute,
private authService: AuthService,
private router: Router,
private notifyService: NotificationService
) {
}
ngOnInit() {
this.loginForm = this.formBuilder.group({
email: ["", [Validators.required, Validators.pattern(this.emailRegx)]],
password: ["", Validators.required]
});
}
get f() { return this.loginForm.controls; }
onSubmit() {
this.submitted = true;
if (this.loginForm.invalid) {
return;
}
this.loading = true;
let login: Login = { Email: this.f.email.value, Password: this.f.password.value }
this.authService.signIn(login)
.pipe(first())
.subscribe({
next: () => {
this.router.navigateByUrl('/landing');
},
error: error => {
this.error = error;
this.loading = false;
this.notifyService.showError(this.error, this.error)
}
});
}
}
My application is running properly but in terminal I am getting below error
can someone please help
Upvotes: 0
Views: 2414
Reputation: 2510
So, initially loginForm
is undefined.
Try to add loginForm?.control?...
The same with error, by default there no errors,
Also should add: errors?.required
Upvotes: 5