Angular include CDN in component usage

问题:

I have CDN URL and I want to use it inside of the Component TypeScript file.

What would be the "right" way of dealing with CDN's in Angular 2 and greater versions?

回答1:

If you want users to retrieve the js/css files from a CDN, you need to include these files in your index.html. Example with momentjs (Note: this is just an example, momentjs can be installed via npm in your project)

index.html

<!-- get script from CDN -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.min.js" />

Then, to use the the script in your component, you need to manually declare the exported variables / functions to avoid TS compilation errors

component.ts

declare let moment: any; //declare moment

//use moment
moment().format(....);

Note: some libraries have types that you can use instead, instead of using any. You can get these types from the @types repository