!!! Overview[1]
[{$pagename}] is a data structure within [JavaScript Object Notation] ([JSON])

!! [{$pagename}] Syntax
Example:
%%prettify 
{{{
{ "name":"John", "age":30, "car":null }
}}} /%

[{$pagename}] are surrounded by curly braces {}.

[{$pagename}] are written in key/value pairs.

Keys must be strings, and values must be a valid JSON data type (string, number, object, array, boolean or null).

Keys and values are separated by a colon.

Each key/value pair is separated by a comma.

Accessing [{$pagename}] Values
You can access the object values by using dot (.) notation:
%%prettify 
{{{
myObj = { "name":"John", "age":30, "car":null };
x = myObj.name;
}}} /%

!! Nested [{$pagename}]
Values in a [{$pagename}] can be another [{$pagename}].

Example:
%%prettify 
{{{
myObj = {
  "name":"John",
  "age":30,
  "cars": {
      "car1":"Ford",
      "car2":"BMW",
      "car3":"Fiat"
  }
}
}}} /%

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
----
* [#1] - [JSON Objects|https://www.w3schools.com/js/js_json_objects.asp|target='_blank'] - based on information obtained 2017-07-11-