Vue watch two dimensional Array and Object

Today, We want to share with you Vue watch two dimensional Array and Object.In this post we will show you vue.js $watch array of objects, hear for How to Watch Deep Data Structures in Vue (Arrays and Objects) we will give you demo and example for implement.In this post, we will learn about Get the array key of changed value from array using watch with an example.

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Vue watch two dimensional Array and Object

There are the Following The simple About Vue.js watch two dimensional Array and Object Full Information With Example and source code.

As I will cover this Post with live Working example to develop Vue deep watch changes in an array, so the VueJS – Update dom after nested array updates for this example is following below.

Step 1: HTML Part

<script src="https://unpkg.com/vue"></script>

<div id="app">
  <child :dataset="dataset" :data-obj="products"></child>
</div>

Step 2: Javascript Part

const child = {
	template: '<p>{{dataset}}<br>{{products}}</p>',
	props: ['dataset', 'products'],
  watch: {
  	dataset() {
    	alert('dataset updated!');
    },
    products() {
    	alert('products updated!');
    }
  }
}

new Vue({
  el: '#app',
  components: {
  	child: child
  },
  data: {
    dataset: [
      [10, 20, 30, 40, 50],
      [60, 70, 80, 90, 100]
    ],
    products: {
    	hoge: {
      	a: 'this is a.',
        b: 'this.is b.'
      }
    }
  },
  mounted() {
    setTimeout(() => {
      this.dataset[0][0] = "change value";
      this.dataset = [].concat(this.dataset);
    }, 3000)

		setTimeout(() => {
      this.products.hoge.a = 'updated a.'
      this.products = Object.assign({}, this.products)
    }, 5000)
  }
})

Vuex Two Dimensional Array
Web Programming Tutorials Example with Demo

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