Skip to content
Related Articles
Get the best out of our app
GeeksforGeeks App
Open App
geeksforgeeks
Browser
Continue

Related Articles

JavaScript JSON parse() Method

Improve Article
Save Article
Like Article
Improve Article
Save Article
Like Article

The JSON.parse() method in JavaScript is used to parse a JSON string which is written in a JSON format and returns a JavaScript object

Syntax:

JSON.parse( string, function )

Parameters: This method accepts two parameters as mentioned above and described below:

  • string: It is a required parameter and it contains a string that is written in JSON format.
  • function: It is an optional parameter and is used to transform results. The function called for each item.

Return Value: This method returns an object corresponding to the given JSON text.

Example 1: Below is an example of the JSON parse() Method.

JavaScript




let obj = JSON.parse('{"var1":"Geeks","var2":"forGeeks!"}');
 
console.log(obj.var1 + " " + obj.var2);

Output:

GeeksforGeeks!

Example 2: This example parses a string and returns the JavaScript object. 

Javascript




let obj = JSON.parse('{"var1":"Hello","var2":"Geeks!"}');
 
console.log(obj.var1 + " " + obj.var2);

Output

Hello Geeks!

Example 3: This example uses the reviver function to parse a string and return the JavaScript object. 

Javascript




let text = '{ "var1":"Amanda", "gender":"male"}';
 
let obj = JSON.parse(text, function (key, value) {
    if (value == "male") {
        return ("female");
    } else {
        return value;
    }
});
console.log(obj.var1 + ", " + obj.gender);

Output

Amanda, female

We have a complete list of Javascript JSON methods, to check those please go through Javascript JSON Complete Reference article.

Supported browsers:

  • Chrome 4.0
  • Firefox 3.5
  • Opera 11.0
  • Internet Explorer 8.0
  • Safari 4.0

My Personal Notes arrow_drop_up
Last Updated : 02 Jun, 2023
Like Article
Save Article
Similar Reads
Related Tutorials