Computer scienceFrontendVue.jsIntroduction to Vue 3

Installation

5 minutes read

Are you ready to dive into the world of Vue 3 and build amazing web applications? Before we start this journey, let's first understand why we need to install certain tools and how they contribute to our Vue development experience.

Firstly, we need to have Node.js installed on our system. It serves as the foundation for Vue and provides the necessary environment for Vue projects. Next, we have npm which comes bundled with Node.js and acts as a package manager for Node.js projects. npm allows us to install and manage dependencies for our Vue projects seamlessly.

With Node.js and npm set up, we can now proceed with the installation of Vue 3. In this guide, we will walk you through the step-by-step process to install Vue CLI, a command-line tool that is the foundation for creating and running Vue projects effortlessly.

Pre-installation requirements

Before we dive into the installation process, there are a few things you need to have in place:

1. Node.js. Vue requires Node.js to be installed on your system. Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It allows you to run JavaScript code outside of a web browser. You can download the latest version of Node.js from the official website (https://nodejs.org) and follow the installation instructions for your operating system.

Please note it's recommended to install the latest LTS (Long-Term Support) version of Node.js

2. npm. It's short for Node Package Manager, a package manager for Node.js. It comes bundled with Node.js, so once you have Node.js installed, you'll have npm as well. It is used to install and manage dependencies for your Vue projects.

With Node.js and npm set up, you're ready to proceed with the installation of Vue 3.

Installation

Let's get Vue 3 up and running on your system. Follow these step-by-step instructions:

Step 1: Open a terminal or command prompt.

Step 2: Run the following command in the terminal or command prompt to install Vue CLI, which is a command-line tool that helps you build and manage Vue projects:

npm install -g @vue/cli 

The -g flag ensures that the package is installed globally on your system, allowing you to use Vue CLI from any directory.

Step 3: Once the installation is complete, verify that Vue CLI is installed by running the following command:

vue --version 

This should display the version number of Vue CLI, indicating a successful installation.

Version of Vue CLI

Congratulations! Vue CLI is now installed on your system, allowing you to create new Vue projects effortlessly.

Setting up a new project

With Vue CLI installed you can create a new Vue project. Follow these steps:

Step 1: Navigate to the directory where you want to create your project using the cd command. For example, to create a project in a directory named my-vue-project, use:

cd my-vue-project

Step 2: Run the following command to create a new Vue project:

vue create .

The dot (.) at the end of the command tells Vue CLI to generate the project in the current directory.

Step 3: Vue CLI will prompt you to pick a preset. You can choose between manually selecting features or using a default preset. Select the preset that best suits your project requirements.

Presets of Vue CLI

Step 4: After selecting a preset, Vue CLI will download the necessary dependencies and set up the project structure. This might take a moment, depending on your internet speed.

New Vue project set up

Great! You now have a new Vue project set up and ready to go.

Running the project

Now that your project is set up, it's time to run it and see it in action. Follow these steps:

Step 1: Navigate to your project's directory if you're not already there.

Step 2: Run the following command to start the development server:

npm run serve

This will compile your Vue project and launch a local development server.

Step 3: Once the development server is up and running, you'll see a URL in the terminal. This URL usually follows the format http://localhost:port_number. The port number is where the development server is running, typically on port 8080 or 3000. So, you might enter http://localhost:8080 or http://localhost:3000 in your browser. And voila! You should now see your Vue project running live.

Feel free to make changes to your project's code, and the development server will automatically reload the page to reflect your updates.

While setting up a Vue project on your local system is ideal, some learners might face system bugs or errors that prevent this. But don't worry, there are online tools available that provide a playground for Vue projects.

Platforms like CodePen, JSFiddle, and CodeSandbox allow you to write and visualize Vue code directly in your web browser without the local setup. These tools emulate a development environment, allowing you to write, run, and debug Vue code. They are excellent alternatives if you're facing challenges with your local setup or if you want to quickly prototype something without installing Vue on your system.

Conclusion

In this guide, we've covered the installation process for Vue 3, starting from the pre-installation requirements of Node.js and npm. We then walked through the steps to install Vue CLI, set up a new project, and run it in a web browser. By following these instructions, you're now equipped to embark on your Vue journey and build amazing applications.

Remember, Vue CLI simplifies the process of project setup and offers a wide range of features and plugins to enhance your Vue development experience. Happy coding with Vue 3!

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