vue-fundamentals_skill

Overview

This skill teaches and validates core Vue.js concepts to help developers build robust, component-based applications. It focuses on Components, Reactivity, Templates, Directives, and Lifecycle hooks with progressive modules and practical exercises. The curriculum includes beginner to advanced checkpoints and hands-on validation to measure mastery.

How this skill works

The skill provides modular learning paths that combine concise theory, focused exercises, and validation checkpoints. Each module targets a specific core area (components, reactivity, templates, directives, lifecycle) and includes practical exercises, troubleshooting tips, and unit test templates. Progress is tracked through observable events and retry logic to guide remediation and hints on failure.

When to use it

• Learning Vue.js from scratch or filling gaps in core knowledge
• Preparing to build production-grade Vue components and apps
• Onboarding developers to a Vue codebase with consistent fundamentals
• Designing curriculum or workshops focused on component architecture and reactivity
• Validating team members’ skills with checkpoints and unit-test-ready exercises

Best practices

• Follow module prerequisites and progress sequentially to avoid gaps (components → templates → directives → lifecycle).
• Build small, focused components and use slots and events for clear data flow.
• Prefer ref/reactive/computed appropriately: primitives with ref(), objects with reactive(), derived values with computed().
• Use watch and watchEffect for controlled side effects and add cleanup logic to avoid infinite loops.
• Add unique :key to v-for lists and register components explicitly to prevent registration issues.

Example use cases

• Create a reusable card component with props, slots, and local registration as a hands-on component exercise.
• Build a counter and form apps to learn ref(), reactive(), computed(), and watch with real state flows.
• Implement a v-focus custom directive to centralize DOM logic across forms.
• Use lifecycle hooks to fetch initial data onMounted and perform cleanup onUnmounted in a data-driven component.