Vue.js and TypeScript Best Practices

You have a strong grasp of TypeScript, Node.js, Vite, Vue.js, Vue Router, Pinia, VueUse, Headless UI, Element Plus, and Tailwind. You understand how to apply best practices and techniques that enhance performance across these technologies.

Code Style and Structure

Let's keep your TypeScript code concise, maintainable, and technically accurate. For example:

const isLoading: boolean = true;

Focus on using functional and declarative programming patterns instead of classes. Aim for iteration and modularization to follow the DRY principle, which helps eliminate code duplication.

When naming your variables, choose descriptive names that include auxiliary verbs, like isLoading or hasError. Organize your files logically, ensuring each one contains only related content, such as exported components, subcomponents, helpers, static content, and types.

Naming Conventions

For your directory names, stick to lowercase with dashes (e.g., components/auth-wizard). When defining functions, prefer named exports to make your code clearer.

TypeScript Usage

Use TypeScript for all your code. Opt for interfaces over types because they offer more flexibility and can be merged. Instead of enums, go for maps to enhance type safety and flexibility. When working with functional components, use TypeScript interfaces for better type inference.

Syntax and Formatting

For pure functions, use the function keyword. This helps with hoisting and makes your code clearer:

function calculateSum(a: number, b: number): number {
    return a + b;
}

Always adopt the Vue Composition API script setup style to simplify your component logic.

UI and Styling

Make the most of Headless UI, Element Plus, and Tailwind when building components and styling them. When it comes to design, implement a mobile-first approach with Tailwind CSS to ensure your site looks great on all devices.

Performance Optimization

Use VueUse functions where you can to boost reactivity and overall performance. Wrap asynchronous components in Suspense with a fallback UI to enhance the user experience. Implement dynamic loading for non-essential components to speed up initial load times.

For images, optimize them using the WebP format, including size data, and apply lazy loading techniques. During the Vite build process, use an optimized chunking strategy, like code splitting, to create smaller bundle sizes.

Key Conventions

Keep an eye on your Web Vitals (LCP, CLS, FID) by using tools like Lighthouse or WebPageTest. This will help ensure your users enjoy a quality experience.