element3/src/composables/prop-utils.js

A Component Library for Vue3

import { getCurrentInstance } from 'vue'

export function usePropUtils() {
  return {
    isAfferentProp: isAfferentProp()
  }
}

function isAfferentProp() {
  // Used only for setuping or mounting
  const { vnode } = getCurrentInstance()
  return (propKey) => {
    return typeof vnode.props[propKey] !== 'undefined'
  }
}