How to use Shared Service In Angular
One approach is to create a shared service that acts as an intermediary between the sibling components. The shared service holds the data and exposes methods to update and retrieve the data. The sibling components can inject the shared service and communicate with each other by setting and getting the shared data. The service can store data that can be accessed and modified by both sibling components.
This approach is useful when the sibling components need to share data without relying on parent-child relationships or event emitters. Additionally, it promotes code reusability since the same shared service can be used across different parts of the application where data sharing is required.
import { Injectable } from '@angular/core';
@Injectable({
providedIn: 'root'
})
export class SharedService {
sharedData: any;
constructor() { }
setData(data: any) {
this.sharedData = data;
}
getData(): any {
return this.sharedData;
}
}
In Sibling A component, we can set the shared data using the shared service’s setData() method. In Sibling B component, we can retrieve the shared data using the shared service’s getData() method.
Pass Data Between Siblings in Angular
In Angular, components are the building blocks of the user interface. If the structure of components is hierarchical, passing data between parent and child components is simple using input/output bindings. However, passing data directly between sibling components can be more challenging since they don’t have a direct parent-child relationship.
Table of Content
- Using Shared Service
- Using Input and Output Properties
- Using State Management (NgRx or Redux)
“Passing data between siblings” refers to the process of sharing data between components that share the same parent component but are not directly connected. It involves establishing a communication mechanism between the sibling components so that they can exchange information. Let us discuss a few approaches to achieving this.