Having trouble changing the input array value in Angular 14. I'm not sure why it's not working. If anyone has any insights or solutions, please help!
Snippet from app.component.ts:
changeVal() {
this.httpClient.get<string[]>('assets/role.json').subscribe((data) => {
this.allData = data;
console.log(data);
});
}
Check out the demo: https://stackblitz.com/edit/angular-ivy-3p6bxk?file=src%2Fapp%2Fauto%2Fauto.component.ts
That's why the ngOnChanges() life cycle hook exists!
When the value changes in the parent component, the child component is not automatically aware of it. This is where the OnChanges interface comes in handy. By implementing the ngOnChanges() method with a SimpleChanges parameter, we can ensure that the child component gets notified whenever the value changes in the parent component.
Check out this updated StackBlitz example to see it in action.
Happy coding!
Your code is functioning as intended.
Within your auto.component.ts, you are only assigning values to the rateData property during the component initialization. Any subsequent changes to your @Input() data will not affect the rateData property.
An easy solution would be to utilize a setter method.
You can achieve this by adding the following:
@Input() set data (data: Array<string>) {
this.rateData = data;
}
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