How to Inject Document in Service in Angular

1. Inject Document in Service in Angular
2. Steps to Inject Document in Service in Angular

Angular has many features that make it a good choice for developing web applications. One of these features is dependency injection, making it easy to configure and maintain an application.

In Angular, dependency injection (DI) is the process of providing a dependent object with its dependencies either by passing them from the constructor or by providing them in some other way. Dependency injection can help write more testable, maintainable, and extensible codes.

Inject Document in Service in Angular

Injecting documents into service is a way to read and parse the HTML content. This process can be used to capture data from the page, parse specific tags, or even determine the document’s structure.

It is helpful because it fetches any external resources required to render a webpage. This includes scripts and stylesheets that are linked to the HTML document.

The following code snippet shows how to do this:

import { Document } from '@angular/core';

Steps to Inject Document in Service in Angular

The following are steps to inject document into service in Angular:

Example:

TypeScript code:

import { Component, Inject } from '@angular/core';
import { DOCUMENT } from '@angular/common';
@Component({
    selector: 'my-app',
    templateUrl: './app.component.html',
    styleUrls: [ './app.component.css' ]
})
export class AppComponent  {
    name = 'Angular';
    constructor(@Inject(DOCUMENT) private document: Document){}
    public save(): void{
        document.execCommand('save');
    }
}

HTML code:

<h2>Example of Injecting Document in Service</h2>
<input type="text">
<button (click)="save()">save</button>

There are many benefits to injecting documents into a service. One of the main benefits is that it allows for more flexibility regarding how the document is stored and can be accessed.

It also means that the document can be updated or edited in real-time instead of being stored on a server where updates must be manually applied.

Click here to check the live demonstration of the code above.