Managing Custom Dependencies in SvelteKit

This section of the SvelteKit tutorial covers the management of custom dependencies within your SvelteKit application. Custom dependencies empower you to extend your app's functionality by integrating third-party libraries or your own modules.

Key Concepts

• Custom Dependencies: Libraries or modules that are not included by default in SvelteKit but are essential for your application's functionality.
• Package Management: The use of package managers like npm or yarn to install and manage these dependencies.

Steps to Use Custom Dependencies

• Utilize a package manager to add the dependency to your project. For instance, to add a library named example-lib, run:
• After installation, import the library in your Svelte components or JavaScript files. For example:
• Once imported, utilize the functions or components provided by the library in your application. For example:

Using the Dependency:

<script>
  import { exampleFunction } from 'example-lib';

  let result = exampleFunction();
</script>

<p>The result is: {result}</p>

Import the Dependency:

import { exampleFunction } from 'example-lib';

Install the Dependency:

npm install example-lib

Example

Here’s a simple example of how to use a custom dependency in a Svelte component:

<script>
  import { greet } from 'greeting-lib'; // Replace 'greeting-lib' with your actual library

  let name = 'World';
  let message = greet(name);
</script>

<h1>{message}</h1>

Explanation of the Example

• Importing: The greet function from greeting-lib is imported.
• Using the Function: The greet function is called with the variable name, and the output is stored in the message variable.
• Displaying the Result: The result is displayed in an <h1> tag.

Conclusion

Utilizing custom dependencies in SvelteKit enhances your application by allowing you to leverage external libraries. By following the steps of installing, importing, and using these dependencies, you can significantly extend the capabilities of your Svelte application.