Ways to incorporate Bootstrap components into an Angular application without relying on external modules

I'm attempting to activate Bootstrap 5.3 Tooltips within my Angular 17 application.

Within angular.json, I've added bootstrap.bundle.min.js, which includes PopperJS.

"scripts": [
  "node_modules/bootstrap/dist/js/bootstrap.bundle.min.js"
]

I am following the provided example code from Bootstrap's official documentation for enabling the tooltips: https://getbootstrap.com/docs/5.3/components/tooltips/#enable-tooltips

Their code is giving me an error on line 16 in my app.component.ts file...

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

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss'],
})
export class AppComponent {
  title = 'identity-verification-ui';

  onInit() {
    const tooltipTriggerList = document.querySelectorAll(
      '[data-bs-toggle="tooltip"]'
    );
    const tooltipList = [...tooltipTriggerList].map(
      (tooltipTriggerEl) => new bootstrap.Tooltip(tooltipTriggerEl) // <-- line 16
    );
  }
}

The error reads as

Cannot find name 'bootstrap'. ts (2304)
. It seems that the bootstrap class is not accessible from app.component.ts.

How can I make new bootstrap usable within app.component.ts? Is app.component.ts the correct location for enabling Bootstrap components throughout the entire app? Are there better alternatives?

I prefer not to include jQuery or use third-party npm packages.

Answer №1

To access the functionality provided by a JS file in your Angular project, you must first add it to the head section of your HTML. However, in order to actually use this functionality within your TypeScript code, you will need to manually declare it like so:

declare var bootstrap: any;
Your code should look something like this:
import { Component } from '@angular/core';

declare var bootstrap: any;

@Component({
  selector: 'app-root',
  ...

For more information on defining typings for global libraries at runtime, visit this link.

If the global library you wish to utilize does not come with predefined typings, you can manually define them as any in the file src/typings.d.ts.

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