Meteor : JavaScript platform for web and mobile applications

Meteor is a full-stack JavaScript platform for developing modern web and mobile applications. Meteor includes a key set of technologies for building connected-client reactive applications, a build tool, and a curated set of packages from the Node.js and general JavaScript community.

Advantages

1. Developers only need JavaScript for server and client side development.
2. The coding is very simple and beginner friendly.
3. Meteor apps are real time by default.
4. Official and community packages are huge time saver.

MongoDB collections in Meteor

At its core, a web application offers its users a view into, and a way to modify, a persistent set of data. Whether managing a list of todos, Whats app clone, or ordering a car to pick you up, you are interacting with a permanent but constantly changing data layer.

In Meteor, that data layer is typically stored in MongoDB. A set of related data in MongoDB is referred to as a “collection”. In Meteor you access MongoDB through collections, making them the primary persistence mechanism for your app data.

However, collections are a lot more than a way to save and retrieve data. They also provide the core of the interactive, connected user experience that users expect from the best applications. Meteor makes this user experience easy to implement.