JSON Interview_questions: JSON Introduction

JSON Introduction

JSON or JavaScript Object Notation is a lightweight text-based open standard designed for human-readable data interchange. Conventions used by JSON are known to programmers, which include C, C++, Java, Python, Perl, etc.

  • JSON stands for JavaScript Object Notation.
  • The format was specified by Douglas Crockford.
  • It was designed for human-readable data interchange.
  • It has been extended from the JavaScript scripting language.
  • The filename extension is .json.
  • JSON Internet Media type is application/json.
  • The Uniform Type Identifier is public.json.

Uses of JSON:

  • It is used while writing JavaScript based applications that includes browser extensions and websites.
  • JSON format is used for serializing and transmitting structured data over network connection.
  • It is primarily used to transmit data between a server and web applications.
  • Web services and APIs use JSON format to provide public data.
  • It can be used with modern programming languages.

Characteristics of JSON:

  • JSON is easy to read and write.
  • It is a lightweight text-based interchange format.
  • JSON is language independent.

Simple Example in JSON

   {"name":"John", "age":"23", "city":"Agra"},
   {"name":"Steve", "age":"28", "city":"Delhi"},
   {"name":"Peter", "age":"32", "city":"Chennai"},
   {"name":"Chaitanya", "age":"28", "city":"Bangalore"}


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