one way and two-way data binding in JavaScript

one way and two-way data binding in JavaScript
One Way data flow:
In one-way data binding, view not updates routinely whilst data model modified and we want to write custom code to make it updated on every occasion. It’s now not a synchronization technique and it’ll system data in one way.
Two-manner records binding:
Two-way data binding means that UI fields are bound to model data dynamically such that when a UI field changes, the model data changes with it.