How to Install Svelte?

To install Svelte, you can use npm which is a package manager for JavaScript. Start by creating a new project folder and navigating into it using the terminal. Then run the command npm init svelte. This will prompt you to enter details about your project and set up a basic template. Once that is done, you can start the development server by running npm run dev and access your project at http://localhost:5000. You can now begin writing your Svelte components and building your application.

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What is Sapper in Svelte?

Sapper is a framework for building high-performance web applications using Svelte. It is an official add-on for Svelte that provides extra features such as server-side rendering, routing, code-splitting, and more, to help developers build complex web applications with ease. Sapper aims to make Svelte even more powerful and versatile by providing additional tools and functionality to enhance the development experience.

What is Svelte action?

Svelte actions are used to directly interact with the DOM or perform side effects in a Svelte component. Actions are similar to lifecycle methods in other frameworks, but they offer a more declarative way to manage side effects and interactions with the DOM. They can be used to add event listeners, manipulate the DOM, or integrate with third-party libraries. Svelte actions are defined as functions that are typically attached to HTML elements using the use: directive.

How to install Svelte SSR?

To install Svelte SSR (Server-Side Rendering), you can follow these steps:

1. Start by creating a new Svelte project using the Svelte template:

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npx degit sveltejs/template my-svelte-project
cd my-svelte-project

1. Install sirv and @sveltejs/kit packages by running the following command:

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npm install

1. Next, add SSR support to your Svelte project by installing the @sveltejs/adapter-node package:

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npm install --save-dev @sveltejs/adapter-node

1. Create a svelte.config.js file in the root of your project directory and configure it to use the Node adapter:

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import adapter from '@sveltejs/adapter-node';

export default {
  kit: {
    adapter: adapter()
  }
};

1. Run the Svelte project in SSR mode with the following command:

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npm run build
npm run start

Your Svelte project should now be running with SSR support enabled. You can access it by navigating to http://localhost:3000 in your web browser.