Encountering an issue with my Angular application's template file (dashboard.component.html). The error message reads "Object is possibly 'undefined'." Here's the portion of the template that seems to be causing the problem:
<div>
<p class="title">Dashboard</p>
<ul>
@for(post of posts; track post.title){
@if(post.id%2==0){
<li>{{post.id}}-{{post.title}}</li>
}
}
</ul>
</div>
// dashboard.component.ts
import { Component } from '@angular/core';
import { AuthService } from '../auth.service';
@Component({
selector: 'app-dashboard',
standalone: true,
imports: [],
templateUrl: './dashboard.component.html',
styleUrl: './dashboard.component.scss',
})
export class DashboardComponent {
email = localStorage.getItem('email');
posts:any;
constructor(private authService: AuthService) {
this.GetAllPosts();
}
signOut() {
this.authService.signOut();
}
GetAllPosts(){
this.authService.getAllPosts().subscribe((res)=>{
this.posts = res;
})
}
}
The error specifically points to line 10, where I'm attempting to iterate over posts using an @for loop and checking if post.id % 2 == 0. However, TypeScript is flagging it as a potential error because posts could be undefined or null.
How should I modify this template code to handle the scenario where posts might be undefined without triggering this error?