Composables Vue

When to Create One

• When the same logic appears in multiple components.
• When a component becomes hard to read.
• When local state has its own behavior.

Example

import { ref } from 'vue'

export function useToggle(initialValue = false) {
  const value = ref(initialValue)
  const toggle = () => {
    value.value = !value.value
  }

  return { value, toggle }
}