How to access data from outside the instance in Vue js?

Question

I'd like to get access to vm data from outside the instance like so:

myComponent.vue

export default {
    data() {
        return {
            name: 'Joe'
        };
    }
}

main.js

var vm = new Vue({
    el: '#app',
    render: h => h(myComponent)
});

Desired Result

console.log(vm.name);   // should return - Joe

For some reason, console returns undefined. What I'm doing wrong?

Answer 1

To access vue.js object datas from inside you can use $property_name. Example

var vm = new Vue({
    el: '#app',
    data() {
      return {
        name: "Kapucni",
      }
    },
  template: '<div>{{ name }}</div>'
});

// use $name .property
console.log(vm.$data.name);
console.log(vm.$el);
// calling functions from $method, etc ...

<script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>

<div id='app'>
  
</div>