JSON format and data types

JSON Syntax:

JSON syntax is a subset of the JavaScript object notation syntax. JSON syntax has following rules:
1. Data is represented in name/value pairs.
2. Data is separated by commas.
3. Curly braces hold objects and each object name is followed by colon.
4. Square brackets hold arrays.

JSON example:

{"students":[ {"firstName":"Sandy", "lastName":"Sethi"}, {"firstName":"Roxy", "lastName":"Malik"}, {"firstName":"Sunil", "lastName":"Antil"} ]}

JSON datatypes:

Data Type	Description
Number	It represents double-precision floating-point format in JavaScript
String	It represents double-quoted Unicode with backslash escaping
Boolean	It represents true or false
Array	It represents an ordered sequence of values
Value	it can be a string, a number, true or false, null etc
Object	It represents an unordered collection of key:value pairs
Whitespace	It can be used between any pair of tokens
null	It represents empty