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JSON  static object

A static class containing methods for parsing and forming JSON notation, which is an acronym for JavaScript Object Notation.


The JSON format allows us to serialize objects that can be passed across different user platforms in a language dependant way.

  • The JSON global object is a static object which means we cannot instantiate objects of type JSON.
  • The two methods of this class are also static and so we access these using JSON followed by the name of the method we wish to use.


Signature Description
JSON.classMethodName()Use a JSON class method.


Parameter Description
classMethodNameThe name of the class method we wish to use.

Class Properties


Instance Properties

We cannot instantiate JSON objects and so there are no instance properties.

Class Methods

Class Method Description
parse()Returns a parsed JSON string.
stringify()Converts a value to JSON format.

Instance Methods

We cannot instantiate JSON objects and so there are no instance methods.


// Store properties in an array.
var jsonMethods = new Array(12);
jsonMethods[0] = 'Parse some data: ';   
jsonMethods[1] = JSON.parse('""'); // Empty String 
jsonMethods[2] = JSON.parse('"A string"'); // A String 
jsonMethods[3] = JSON.parse('[1, 2, 3, 4]'); // Single type array
jsonMethods[4] = JSON.parse('[1, "2", 3, "true"]'); // Multi type array
jsonMethods[5] = JSON.parse('null'); // null

jsonMethods[6] = 'Stringify some data: ';   
jsonMethods[7] = JSON.stringify('""'); // Empty String 
jsonMethods[8] = JSON.stringify('"A string"'); // A String 
jsonMethods[9] = JSON.stringify('[1, 2, 3, 4]'); // Single type array
jsonMethods[10] = JSON.stringify('[1, "2", 3, "true"]'); // Multi type array
jsonMethods[11] = JSON.stringify('null'); // null


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Related Tutorials

JavaScript Intermediate Tutorials - Lesson 7 - Object Literals


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