To explain JSON compression and decompression.

datacompression.js

/*
* This is not to be confused with compression of files.
*/

// Object in decompressed form:
var object = {
    name: "Mohsin",
    feelings: {
        type: "happiness",
        intensity: 10,
        description: "I feel very happy today because I'm going to learn a lot and build cool things"
    }
}

//Object in compressed form:
var data = {
    name: "Mohsin",
    type: "happiness",
    intensity: 10,
    description: "I feel very happy today because I'm going to learn a lot and build cool things"
}

/*
* EXPLANATION
* When your application is running, it is beneficial to have objects inside objects because it gives structure to the data and makes the code more readable. 
* When reading from and writing to the database, this kind of hierarchy can be detrimental to load times and structures because your database "tree" will get horizontally wider.
* Thus, some programmers will convert data from uncompressed form to compressed form when sending to their database and vice versa when running the application.
* This can slightly improve storage capabilities and runtime speed.
*/