JavaScript JSON parse() Method

by Online Tutorials Library July 22, 2022

JavaScript JSON.parse() method

The JavaScript JSON.parse() takes a JSON string and transforms it into a JavaScript object.

Syntax

Parameters

text: The string to parse as JSON.

reviver: It is Optional. It prescribes how the value originally produced by parsing is transformed, before being returned.

Return value

An object corresponding to the given JSON text.

Browser Support

Chrome	Yes
Safari	4
Firefox	3.5
Opera	10.5

JavaScript JSON.parse() method Examples

Example 1

Let’s see a simple example to parse an object.

  <script>  //JavaScript to illustrate JSON.parse() method.  var json = ‘{ “firstName”:”ASHU”, “lastName”:”BHATI”, “studentCode”:7 }’;  var student = JSON.parse(json);  // expected output: ASHU BHATI  document.write(student.firstName + ” ” + student.lastName);   </script>  

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Output:

ASHU BHATI

Example 2

Let’s see an example to parse a particular attribute.

  <script>  //JavaScript to illustrate JSON.parse() method.  var json = ‘{ “firstName”:”ASHU”, “lastName”:”BHATI”, “studentCode”:7 }’;  var student = JSON.parse(json);  // expected output: 7  document.write(student.studentCode);   </script>  

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Output:

Example 3

Let’s see an example to parse an array of attributes.

  <script>  //JavaScript to illustrate JSON.parse() method.  var j = ‘[“C++”,”JavaScript”,”Python”,”HTML”]’;  var data = JSON.parse(j);  document.write(data);   //expected output: C++,JavaScript,Python,HTML  </script>  

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Output:

C++, JavaScript, Python, HTML

Next TopicJavaScript JSON

JavaScript JSON parse() Method

JavaScript JSON.parse() method

Syntax

Parameters

Return value

Browser Support

JavaScript JSON.parse() method Examples

Example 1

Example 2

Example 3

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