Vue Composition API

Master the Vue 3 Composition API for building scalable, maintainable Vue applications with better code organization and reusability.

Setup Function Fundamentals

The setup() function is the entry point for using the Composition API:

import { ref, computed, onMounted } from 'vue';

export default {
  props: ['initialCount'],
  setup(props, context) {
    // props is reactive
    console.log(props.initialCount);

    // context provides attrs, slots, emit, expose