How to Disable the Back Button in Angular 10?

You cannot directly disable the back button in Angular 10. The back button is a browser functionality and Angular does not have direct control over it. However, you can achieve similar functionality by managing the navigation within your application.

Here are some ways to handle back button behavior:

• Prevent Navigation: You can use the Router service's canDeactivate guard to prevent navigation away from a specific route. This guard checks if the user has unsaved changes and prompts them to confirm before navigating away.

• Redirect on Back Button Press: You can utilize the NavigationStart event in the Router service to detect back button presses and redirect the user to a specific route.

• Use a Modal: Instead of navigating away from the current route, you can display a modal dialog to confirm the user's action. This prevents the browser history from updating, effectively disabling the back button for that specific action.

Example:

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

@Injectable({
  providedIn: 'root'
})
export class MyGuard implements CanDeactivate<any> {
  canDeactivate(component: any): boolean {
    // Prompt the user to confirm before leaving the page
    return confirm('Are you sure you want to leave this page?');
  }
}

Remember: Disabling the back button entirely can be frustrating for users. It's generally recommended to find alternative solutions that provide a better user experience.