Table of Contents
A Brief History of JSON
JSON was first proposed by Douglas Crockford in 2006 as a lightweight alternative to XML for data interchange. JSON is a text-based, human-readable format that is easy for machines to parse and generate. It is used extensively in web applications and is the preferred data interchange format for modern web APIs.
Rules and Data Types in JSON
JSON is a text-based data interchange format. JSON is built on two structures:
objects
arrays
Objects are collections of name/value pairs, and arrays are collections of values. Both objects and arrays can contain any of the following data types:
strings
numbers
booleans
null
objects
arrays
JSON also allows for comments, which are denoted by a /* at the start of a line and a */ at the end of a line.
Some Common Applications of JSON
JSON is commonly used in web applications, as it is a lightweight format that can be easily parsed by computers. It is also used in AJAX requests, as it is a popular format for transmitting data. Additionally, JSON is used in many mobile applications, as it is a popular format for transmitting data between devices and servers.
Advantages of JSON
over XML
The main advantage of JSON over XML is that JSON is more concise and lightweight. JSON is also easier for machines to parse than XML.
FAQS on JSON
What is JSON?
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.
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 Ruby. These languages share similar syntax for defining data structures.
JSON is built on two structures:
A collection of name/value pairs.
An ordered list of values.
What are the benefits of using JSON?
JSON is easy for humans to read and write.
JSON is easy for machines to parse and generate.
JSON is a lightweight data-interchange format.
JSON is language independent.
What is the difference between JSON and XML?
JSON is a lightweight data-interchange format, whereas XML is heavyweight.
JSON is easy for humans to read and write, whereas XML is not.
JSON is easy for machines to parse and generate, whereas XML is not.
JSON is a text format that is completely language independent, whereas XML is not.
JSON uses conventions that are familiar to programmers of the C-family of languages, whereas XML uses conventions that are familiar to programmers of the Lisp-family of languages.