Knockout.js and Model-View-View Model (MVVM) Pattern

Introduction:
Knockout.js is a javascript library that helps us to create rich and responsive use interfaces with a clean data model.

Features:
1. Declarative Bindings – A simple way to bind a part of UI to data model.
2. Dependency Tracking – Automatically updates right part of UI when data model changes.
3. Templating – A simple way to make nested UIs as a function of view model data.
4. Trivially Extensible – With a just few line of code, we can implement custom behaviors as new declarative binding for easy reuse.