JSON (JavaScript Object Notation) is a lightweight data-interchange
format. It is easy for humans to read and write. It is easy for machines to
parse and generate. It is based on a subset of the
JavaScript
Programming Language,
Standard
ECMA-262 3rd Edition - December 1999. JSON is a text format that is completely
language independent but uses conventions that are familiar to programmers of
the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python,
and many others. These properties make JSON an ideal data-interchange language.
JSON is built on two structures:
- A collection of name/value pairs. In various languages, this is realized
as an object, record, struct, dictionary, hash table, keyed list, or
associative array.
- An ordered list of values. In most languages, this is realized as an array,
vector, list, or sequence.
These are universal data structures. Virtually all modern
programming languages support them in one form or another. It makes sense
that a data format that is interchangable with programming languages also
be based on these structures.
In JSON, they take on these forms:
An object is an unordered set of name/value pairs. An object
begins with { (left brace) and ends
with } (right brace). Each name is followed
by : (colon) and the name/value pairs are
separated by , (comma).
object- {}
{ members }
- members
- pair
pair , members - pair
- string : value
- array
- []
[ elements ] - elements
- value
value , elements
Reference By : www.json.org
