Vite with Vue: Single File Components Made Easy Quiz Quiz

Explore your understanding of integrating Vite with Vue and managing Single File Components (SFCs). This quiz covers the essentials of SFC structures, hot module replacement, configuration, and efficient development workflows for modern JavaScript applications.

1. Understanding SFC Template Usage

   In a Single File Component using Vite with Vue, where should the main HTML structure of a component be placed for proper rendering?

   1. u003Cstyleu003E block
   2. u003Ctemplateu003E block
   3. u003Cscriptu003E block
   4. u003Ctemplate-htmlu003E block

   Explanation: The u003Ctemplateu003E block is where the main HTML structure is defined in a Single File Component, which Vite and Vue recognize for rendering. The u003Cscriptu003E block is reserved for JavaScript logic, while u003Cstyleu003E handles component-specific CSS. There is no built-in u003Ctemplate-htmlu003E block, so using it would result in an error. Placing the structure elsewhere would prevent proper rendering.

2. Purpose of Hot Module Replacement

   What is the primary benefit of hot module replacement (HMR) when working with Single File Components in a Vite-powered Vue project?

   1. It minifies CSS by default for production builds.
   2. It updates components instantly in the browser without a full page reload.
   3. It compiles the JavaScript code to TypeScript automatically.
   4. It synchronizes backend database changes with the frontend.

   Explanation: Hot module replacement allows components to be updated instantly in the browser without needing to reload the entire page, greatly speeding up development. It does not perform code type conversions such as JavaScript to TypeScript. CSS minification happens at build time for production purposes, not during HMR. Backend database synchronization is a different concern entirely and is unrelated to HMR.

3. Scoping Styles in SFCs

   When defining styles in the u003Cstyleu003E block of a Single File Component, which approach ensures that styles apply only to that specific component?

   1. Inserting styles within the u003Cscriptu003E block
   2. Using inline CSS on each element
   3. Applying global CSS classes in main.css
   4. Adding the 'scoped' attribute

   Explanation: Adding the 'scoped' attribute to the u003Cstyleu003E block ensures styles are limited to the component, preventing conflicts with others. Using inline CSS works but does not scale well. Placing CSS in the u003Cscriptu003E block is incorrect and not supported. Global CSS classes in main.css affect all components and defeat encapsulation.

4. Configuring Aliases for Imports

   In a Vite and Vue project, how can you simplify import paths for components by creating an alias in the configuration file?

   1. Define an alias using the resolve property in the config file
   2. Modify the default browser settings
   3. Prefix import statements with '~/src'
   4. Set a variable in the u003Cscriptu003E block for paths

   Explanation: Using the resolve property to define aliases in the configuration file is the standard way to simplify import paths in your application. Assigning a variable in the u003Cscriptu003E block doesn't affect import resolution. Prefixing with '~/src' works only if it is configured as an alias. Browser settings are unrelated to how modules are imported in your project.

5. Handling Props in Single File Components

   When accepting data from a parent component in a Vue Single File Component setup with Vite, where should you declare the expected properties?

   1. Within the 'props' option in the u003Cscriptu003E block
   2. In a separate JSON configuration file
   3. As custom HTML attributes in the u003Ctemplateu003E block
   4. Inside the u003Cstyleu003E block

   Explanation: Props are declared within the 'props' option inside the u003Cscriptu003E block of the Single File Component, allowing proper type checking and reactivity. Custom HTML attributes in the u003Ctemplateu003E block alone will not connect them to props. The u003Cstyleu003E block only processes CSS, not data structures. External JSON configuration files are not the standard method for prop declarations in Single File Components.