Andrej Sharapov

<ul>
        <li v-for="item in navList">
            <a :href="item.url" :class="item.cls" :title="item.name" @click="isOpen = !isOpen">{{ item.name }}
                <ul v-if="item.children" :class="{ isOpen }" class="dropdown">
                    <li v-for="{ url, name, index } in item.children" :key="index">
                        <a :href="url" :title="name">{{ name }}
                     </li>
                </ul>
             </a>
        </li>
    </ul>

<div id="navbar">
  <block-navigation></block-navigation>
  <span>World!</span>
  <other-components></other-components>
</div>

Vue.component('block-navigation', {
    props: ['val'],
    data() {
      return {
        navlist: [
          { link: 'name-1', name: 'linkName-1' },
          { link: 'name-2', name: 'linkName-2' },
          { link: 'name-3', name: 'linkName-3' },
          { link: 'name-4', name: 'linkName-4' },
          { link: 'name-5', name: 'linkName-5' },
        ]
      }
    },
    template: `
    <ul>
    	<li 
      	v-for="val in navlist"
        :key="val.id">
        <a :href=val.link :title=val.name>{{ val.name }}</a>
      </li>
    </ul>
    `
  })

  new Vue({
    el: '#navbar'
  })