Vue

by Damian Dulisz

HTML

<div id="app">
  <h2>Todos:</h2>
  <ol>
    <todo-item 
      v-for="todo in todos" 
      :todo="todo"
      @toggle="toggle"
      @hook:updated="updated"
     >
    </todo-item>
  </ol>
</div>

CSS

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

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

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

del {
  color: rgba(0, 0, 0, 0.3);
}

Vue

Vue.component('todo-item', {
	props: {
  	todo: {
    	type: Object
    }
  },
  beforeUpdate () {
  	console.log('lifecycle beforeUpdate hook')  	
  },
  updated () {
  	console.log('lifecycle updated hook')
  },
	template: `
    <li>
      <label>
        <input type="checkbox"
          v-on:change="$emit('toggle', todo)"
          v-bind:checked="todo.done">

        <del v-if="todo.done">
          {{ todo.text }}
        </del>
        <span v-else>
          {{ todo.text }}
        </span>
      </label>
    </li>
  `
})

new Vue({
  el: "#app",
  data: {
    todos: [
      { text: "Learn JavaScript", done: false },
      { text: "Learn Vue", done: false },
      { text: "Play around in JSFiddle", done: true },
      { text: "Build something awesome", done: true }
    ]
  },
  methods: {
  	toggle: function(todo){
    	todo.done = !todo.done
    },
    updated () {
      console.log('updated in')
    }
  }
})