Vue Watchers demo

by mahassan

HTML

<div id="app">
  <input type="text" v-model.lazy="userInfo.name"> {{userInfo.name}}
</div>

Vue

new Vue({
  el: "#app",
  data: {
  userInfo: {
        	name: 'null'
  }

  },
  methods: {
  	
  },
  watch: {
  	userInfo : {
      		name(oldVal, newVal){
      		console.log(oldVal +" " + newVal)
      },
    },
     deep: true
  }
})