Vue

by WILLIAM CORREA

HTML

<div id="app">
  <app-menu v-bind="{ items }"></app-menu>
</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

Vue

Vue.component('AppMenu', {
	name: 'AppMenu',
  props: {
  	items: {
    	type: Array,
      required: true
    },
    level: {
    	type: Number,
      default: () => 0
    }
  },
  computed: {
  	next () {
    	if (!this.level) {
      	return 1
      }
      return this.level + 1
    }
  },
  template: `<div>
      <template v-for="(item, index) in items">
      	<div>
          {{ item.label }} {{ level }}
        </div>
        <div v-if="isParent(item)">
          <app-menu v-bind="{ items: item.children, level: next }"></app-menu>
        </div>
      </template>
    </div>`,
  methods: {
    isParent (item) {
      return Array.isArray(item.children)
    }
  }
})

new Vue({
  el: "#app",
  data: () => ({
  	items: [
    	{
      	label: 'Parent',
        children: [
        	{
            label: 'Kid',
            children: [
              {
                label: 'Grand kid'
              }
            ]
          }
        ]
      }
    ]
  })
})