Consider the following points to understand the use of Ember.js:
Ember.js is an open source JavaScript framework under MIT license.
It provides the new binding syntax using the HTMLBars template engine which is a
superset of the Handerlbars templating engine.
It provides the Glimmer rendering engine to increase the rendering speed.
It provides the Command Line Interface utility that integrates Ember patterns into
development process and focuses easily on the developer productivity.
It supports data binding to create the link between two properties and when one
property changes, the other property will get upgraded with the new value.