main.js

import Vue from 'vue'
import App from './App.vue'

Vue.directive('renk', {
  bind(el, binding) {
      if (binding.arg === 'background') {
        el.style.backgroundColor = binding.value;
      } else {
        el.style.color = binding.value;
      }
  }
})

new Vue({
  el: '#app',
  render: h => h(App)
})