Nullinjectorerror: no provider for window!

Answer:

The error message NullInjectorError: No provider for window! indicates that the Angular application is trying to inject the window object, but there is no provider or dependency injected for it. The window object represents the global window of the web browser and is not provided by default in Angular’s dependency injection system.

Potential Solutions:

To solve this error, you can consider one of the following solutions:

1. Using a Custom Provider: You can create a custom provider to provide the window object.

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

@Injectable()
export class WindowService {
  getWindow(): Window {
    return window;
  }
}

// In your component:

import { Component } from '@angular/core';
import { WindowService } from './window.service';

@Component({
  // component configuration
})
export class MyComponent {
  constructor(private windowService: WindowService) {
    const windowObj = this.windowService.getWindow();
    // Use the window object here
  }
}

2. Using the Window object directly: Since the window object is a global object, you can use it directly in your component without injecting it via Angular’s dependency injection system.

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

@Component({
  // component configuration
})
export class MyComponent {
  constructor() {
    const windowObj: Window = window;
    // Use the window object here
  }
}

By using either of these solutions, you should be able to resolve the NullInjectorError: No provider for window! error and access the window object in your Angular application.