How to Use the Command 'vue serve' (with Examples)

The vue serve command is a subcommand provided by @vue/cli and @vue/cli-service-global, designed to streamline the process of rapid prototyping with Vue.js. This command allows developers to quickly serve .js or .vue files in development mode with zero configuration. By eliminating the need for an elaborate setup, it empowers developers to focus on crafting innovative application designs swiftly. The command is particularly beneficial when trying out new features, components, or concepts within the Vue.js environment, providing immediate feedback to help guide development decisions.

Use Case 1: Serve a .js or .vue File in Development Mode with Zero Config

Code:

vue serve filename

Motivation:

When exploring new ideas or testing individual components in a Vue.js project, setting up the full build process can be cumbersome and time-consuming. Developers need a way to visualize their components’ behavior quickly, and this is where vue serve shines. By executing a single command, developers can serve a .js or .vue file instantly, allowing for agile prototyping without the overhead of setting up a full Vue project structure. This is invaluable in fast-paced environments or hackathons where time is of the essence and waiting for configurations could hinder creativity and progression.

Explanation:

• vue: This is the main CLI command that acts as an entry point for all Vue CLI command actions. It provides a consistent and powerful toolset for working with Vue.js projects.

• serve: A subcommand of the Vue CLI that is specifically designed for quickly serving files in development mode. This command performs the task of compiling and launching the file, handling everything from setting up a simple HTTP server to enabling hot-reload, which refreshes the browser instantly upon code changes.

• filename: This specifies the exact .js or .vue file you want to serve. It must be the relative or absolute path to the file that is targeted for prototyping. By indicating the file, vue serve identifies the core input upon which it applies default configurations, executing the file within a local development environment.

Example Output:

Upon running the command vue serve filename, the terminal will display a series of messages indicating the setup of the local server. It will show output similar to the following:

> Running in development mode with zero configuration
> Listening at http://localhost:8080
  
ℹ️  Starting development server...
  
WAIT  Compiling...
  
ℹ️  Compiled successfully in 3456ms!

> Your file is available at http://localhost:8080

These messages confirm that your file is successfully served and running, indicating the URL endpoint where you can access it using a web browser to view and interact with your component.

Conclusion:

The vue serve command is an essential tool in the Vue.js ecosystem for developers aiming to expedite the prototyping phase of their projects. By serving files in development mode with zero configuration, it removes significant hurdles and allows developers to concentrate on their core application logic. By understanding and implementing this command, developers can quickly iterate over design ideas, ultimately leading to more innovative and responsive Vue applications.