Event Based Prop Update Vue JS

by asemahle

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.0.7/vue.js"></script>
<div id="app" v-cloak>
    {{title}}
    <custom-component :val="title" v-on:val-changed="title = arguments[0]"></custom-component>
</div>

<template id="custom-component">
  <button v-on:click="change">CHANGE!</button>
</template>

JavaScript

Vue.component('custom-component', {
  template: '#custom-component',
  props: {
    val: Object,
  },
  data: function() {
  	return {
    	times: 0
    }
  },
  methods: {
  	change: function() {
    	this.times++;
    	this.$emit('val-changed', 'Times changed ' + this.times);
    }
  }
});

var app = new Vue({
    el: '#app',
    data: {
        title: 'Original Value',
    }
})