Best practice in Angular 2: The difference between binding an object as a whole versus binding its individual

What is the best approach for a child component when dealing with object properties and change events?

Example 1

<parent-component>
  <child-component [exampleInput]="object.val" 
                   (valueChanged)="updateObjectValue($event)">
  </child-component>
</parent-component>

vs Example 2

<parent-component>
  <child-component [(obj)]="object"></child-component>
</parent-component>

In our current implementation, the child component has 4 inputs and 2 outputs. Would it be better to simplify this by directly binding the object property in example 2 and handling the update logic within the child component?

angulartypescriptangular2-template

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