Implementing Bootstrap 5 JS within an Angular 11 component TypeScript

Question

Implementing Bootstrap 5 JS within an Angular 11 component TypeScript

I am currently working on a project that utilizes Angular 11 and we are aiming to integrate Bootstrap 5 native JS without relying on third-party libraries like ng-bootstrap, MDB, or ngx-bootstrap (jQuery is not being used as well). I understand that using JS libraries in TS may not be the best practice.

The main issue lies in how to import Bootstrap JS and utilize its objects and methods within Angular's TS components

Initially, my belief was that installing the following packages would suffice:

npm i bootstrap@next
npm i @types/bootstrap

Both packages have been successfully imported into package.json and are present in node_modules. Additionally, I included

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

in angular.json, however, I still encounter difficulties utilizing them.

For instance, when attempting:

import { Carousel } from 'bootstrap';
...
carousel: Carousel | any;
...
this.carousel = document.getElementById('video-carousel')
this.carousel.interval = false;

In this case, where 'bootstrap' is sourced from '@types/Bootstrap'. The carousel should not cycle automatically, yet it does. This challenge persists with other types of Bootstrap elements as well.

angular typescript twitter-bootstrap npm bootstrap-5

Answer 1

Answer №1

I believe you may be utilizing the carousel element incorrectly. To properly utilize the carousel methods, you need to initialize a Carousel element with the appropriate configuration.

Instead of selecting the native HTML element that represents the carousel, it is recommended to create a new Carousel(elementRef, config) and make any necessary modifications by referencing the class.

<div #carouselExampleSlidesOnly class="carousel slide">
  <div class="carousel-inner">
    <div class="carousel-item red active">
      Text 1
    </div>
    <div class="carousel-item orange">
      Text 2
    </div>
    <div class="carousel-item blue">
      Text 3
    </div>
  </div>
</div>

...
 @ViewChild("carouselExampleSlidesOnly") carouselElement: ElementRef<
    HTMLElement
  >;
  carouselRef: Carousel;
...
  ngAfterViewInit() {
    this.carouselRef = new Carousel(this.carouselElement.nativeElement, {
      slide: false
    });
  }
...

This will result in a carousel element that does not automatically slide.

For a practical example, you can check out this Stackblitz, where you can pause and play the carousel. Remember to import

node_modules/bootstrap/dist/js/bootstrap.js

in the scripts section of your angular.json file as well as

"./node_modules/bootstrap/dist/css/bootstrap.css"

in the styles.

Answer 2

I believe you may be utilizing the carousel element incorrectly. To properly utilize the carousel methods, you need to initialize a Carousel element with the appropriate configuration.

Instead of selecting the native HTML element that represents the carousel, it is recommended to create a new Carousel(elementRef, config) and make any necessary modifications by referencing the class.

<div #carouselExampleSlidesOnly class="carousel slide">
  <div class="carousel-inner">
    <div class="carousel-item red active">
      Text 1
    </div>
    <div class="carousel-item orange">
      Text 2
    </div>
    <div class="carousel-item blue">
      Text 3
    </div>
  </div>
</div>

...
 @ViewChild("carouselExampleSlidesOnly") carouselElement: ElementRef<
    HTMLElement
  >;
  carouselRef: Carousel;
...
  ngAfterViewInit() {
    this.carouselRef = new Carousel(this.carouselElement.nativeElement, {
      slide: false
    });
  }
...

This will result in a carousel element that does not automatically slide.

For a practical example, you can check out this Stackblitz, where you can pause and play the carousel. Remember to import

node_modules/bootstrap/dist/js/bootstrap.js

in the scripts section of your angular.json file as well as

"./node_modules/bootstrap/dist/css/bootstrap.css"

in the styles.

Answer 3

Answer №2

The Carousel feature in Bootstrap relies on the use of Bootstrap's own JavaScript plugins and Popper.js. To ensure that your carousel functions properly, make sure to include popper.min.js before including Bootstrap’s JavaScript file. Alternatively, you can use bootstrap.bundle.min.js or bootstrap.bundle.js which already contain Popper and will resolve any issues. I faced a similar problem with the bootstrap dropdown-toggle not working. Instead of adding

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

in the angular.json file, I included

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

(with Popper included) which solved the problem effortlessly.

Answer 4

The Carousel feature in Bootstrap relies on the use of Bootstrap's own JavaScript plugins and Popper.js. To ensure that your carousel functions properly, make sure to include popper.min.js before including Bootstrap’s JavaScript file. Alternatively, you can use bootstrap.bundle.min.js or bootstrap.bundle.js which already contain Popper and will resolve any issues. I faced a similar problem with the bootstrap dropdown-toggle not working. Instead of adding

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

in the angular.json file, I included

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

(with Popper included) which solved the problem effortlessly.

Answer 5

Answer №3

Even if you include

node_modules/bootstrap/dist/js/bootstrap.js

in your angular.json, your component may not recognize it properly. It is better to only add the necessary code in your component to enable tree shaking.

To utilize Bootstrap functionality, such as modals, in your component, import the specific bootstrap js file like this:

import Bootstrap from 'bootstrap/dist/js/bootstrap';

Create a variable for the bootstrap modal and use @ViewChild as shown below:

modalDirect: Bootstrap.Modal;
@ViewChild('demoModal') input;
Now, create a method to open the Bootstrap 5 modal when a button is clicked
open(element): void {
  this.modalDirect = new Bootstrap.Modal(element, {});
}

Now it should be functioning correctly.

For an example, you can visit

https://github.com/aniruddhadas9/bootstrap5-angular10-without-JQuery/blob/master/src/app/components/home/home.component.ts

Answer 6

Even if you include

node_modules/bootstrap/dist/js/bootstrap.js

in your angular.json, your component may not recognize it properly. It is better to only add the necessary code in your component to enable tree shaking.

To utilize Bootstrap functionality, such as modals, in your component, import the specific bootstrap js file like this:

import Bootstrap from 'bootstrap/dist/js/bootstrap';

Create a variable for the bootstrap modal and use @ViewChild as shown below:

modalDirect: Bootstrap.Modal;
@ViewChild('demoModal') input;
Now, create a method to open the Bootstrap 5 modal when a button is clicked
open(element): void {
  this.modalDirect = new Bootstrap.Modal(element, {});
}

Now it should be functioning correctly.

For an example, you can visit

https://github.com/aniruddhadas9/bootstrap5-angular10-without-JQuery/blob/master/src/app/components/home/home.component.ts

Answer 7

Answer №4

After encountering a similar issue, I discovered that the problem was due to incorrectly importing scripts and styles in the wrong location. It's crucial to ensure that you're importing them within the correct area.

"architect": { 
  "build": {
    "options": {
       ...
     "styles": [],
     "scripts": []
     }
  }
}

In my case, I mistakenly imported mine inside "test": { .... }.

Answer 8

After encountering a similar issue, I discovered that the problem was due to incorrectly importing scripts and styles in the wrong location. It's crucial to ensure that you're importing them within the correct area.

"architect": { 
  "build": {
    "options": {
       ...
     "styles": [],
     "scripts": []
     }
  }
}

In my case, I mistakenly imported mine inside "test": { .... }.

Implementing Bootstrap 5 JS within an Angular 11 component TypeScript

Answer №1

Answer №2

Answer №3

Answer №4

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