What is Two Way Data Binding?
Any model changes are automatically in the view and any changes to the model like text box , radio button selection , check box selection are also updated to the model.
How to achieve Two way data binding in Vue js?
Similar to angular where in angular it provides ng-model directive to achieve two way data binding , in vue it provides a directive called v-model with which we can achieve two way data binding.
Example:
In this example , whenever you type something in text box , its value is automatically updated in the view.