Currently, I am in the process of developing a small project that involves registration and authentication using Express alongside Angular 9. Everything was progressing smoothly until I encountered the error
Not all code paths return a valuevalidate.service.ts
import { Injectable } from '@angular/core';
@Injectable({
providedIn: 'root'
})
export class ValidateService {
constructor() { }
validateRegister(user) {
if(user.name == undefined || user.email == undefined || user.password == undefined) {
return false;
} else {
return true;
}
}
validateEmail(email) {
// operations ...
}
}
register.components.ts
import { Component, OnInit } from '@angular/core';
import { ValidateService } from '../../services/validate.service';
import { FlashMessagesService } from 'angular2-flash-messages';
@Component({
selector: 'app-register',
templateUrl: './register.component.html',
styleUrls: ['./register.component.css']
})
export class RegisterComponent implements OnInit {
name!: String;
username!: String;
email!: String;
password!: String;
constructor(private validateService: ValidateService, private flashMessage: FlashMessagesService) { }
ngOnInit(): void {
}
onRegisterSubmit() {
const user = {
name: this.name,
username: this.username,
email: this.email,
password: this.password
}
// Required fields
if(!this.validateService.validateRegister(user)) {
this.flashMessage.show('Please fill in all fields', {cssClass: 'alert-danger', timeout: 3000});
return false;
}
// Email validation
if(!this.validateService.validateEmail(user.email)) {
this.flashMessage.show('Please enter a valid email address', {cssClass: 'alert-danger', timeout: 3000});
return false;
} else console.log('Validation successful');
}
}
Lastly, in the register.components.html file, the onRegisterSubmit() method is being invoked:
<h2 class="page-header">Register</h2>
<form (submit)="onRegisterSubmit()">
<div class="form-group">
<label>Name</label>
<input type="text" [(ngModel)]="name" name="name" class="form-control">
</div>
</form>
The issue appears to originate from the register.component.ts file, indicating that something crucial might be missing. While I initially suspected an improper initialization problem, my search yielded no results. I even consulted this post for additional insights, but unfortunately, the problem still persists. Any guidance towards resolving this dilemma would be highly appreciated.