Avoid mutating a prop directly since the value will be overwritten

Question

I have very common problem with upgrading to Vue 2.0

I am getting warning:

Avoid mutating a prop directly since the value will be overwritte

Answer 1

A computed property with appropriate get and set worked for me:

computed: {
  dialogDataProp: {
      get: function() {
        return this.dialog;
      },
      set: function() {}
    }
}

Code above for toggling a dialog box.