Guide to incorporating external CSS and JavaScript into an Angular 2 project with Express.js and Node.js

As a newcomer to Angular2 and NodeJs, I am eager to learn how to integrate external CSS and JS in an Angular2 and Nodejs express app. Specifically, I am looking to integrate a bootstrap admin theme into my Nodejs application. The screenshots below provide a visual reference for the app structure:

  1. Screenshot from the client folder in Angular2.

https://i.sstatic.net/3YY0z.png

  1. Screenshot of the express Nodejs App.

https://i.sstatic.net/szAoU.png

Thank you in advance for any assistance or guidance.

Answer №1

If you want to allow external styles to impact the content of components, you can adjust the view encapsulation to prevent styles from bleeding into components.

@Component({
    selector: 'some-component',
    template: '<div></div>',
    styleUrls: [
        'http://example.com/external.css',
        'app/local.css'
    ], 
})

It's important to note that view encapsulation serves a specific purpose. A more effective approach is to apply styles directly to the component they are intended for. ViewEncapsulation can be configured on a per-component basis and can be useful in certain scenarios. For further information, refer to this related issue https://github.com/angular/angular/issues/5390

Here's an example for including scripts:

<head>
       <link href="https://cdnjs.cloudflare.com/ajax/libs/cropperjs/0.8.1/cropper.css" rel="stylesheet">
       <script src="https://cdnjs.cloudflare.com/ajax/libs/cropperjs/0.8.1/cropper.js"></script>
       <script type="text/javascript">
        window.addEventListener('DOMContentLoaded', function () {
          var image = document.querySelector('#image');
          var cropper = new Cropper(image, {
            viewMode: 3,
            dragMode: 'move',
            autoCropArea: 1,
            restore: false,
            modal: false,
            guides: false,
            highlight: false,
            cropBoxMovable: false,
            cropBoxResizable: false,
            toggleDragModeOnDblclick: false,                                                  
          });
        });

      </script>

</head>

Please note that the above links may vary depending on the CDN links for JavaScript libraries.

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