Easy Tutorial
Js Scope Jsref Class Extends Js Window Location Js Statements Js Variable Js Typeof Js Lib Prototype Js Cookies Javascript Json Parse Js Strict Js Json Js Conventions Js Loop For Js Function Parameters Js Htmldom Nodelist Js Objects Met Win Postmessage Js Comparisons Js Datatypes Jsref Split Js Ex Objects Js Function Js Chrome Js Async Js Obj String Js Obj Regexp Js Validation Api Js Htmldom Elements Js Form Validation Jsref Obj Array Js Function Closures Jsref Class Super Js Void Js Comments Js Object Prototype Js Ex Browser Js Class Inheritance Js Obj Date Js Summary Js If Else Js Htmldom Html Js Window History Jsref Regexp G Js Syntax Js Obj Math Js Loop While Js Window Jsref Obj Date Js Lib Jquery Js Examples Js Variables Js Switch Js Operators Js Obj Intro Js Break Js Obj Number Jsref Regexp I Js Let Const Js Htmldom Eventlistener Js Obj Array Js Timing Js Errors Jsref Replace Js Mistakes Js Htmldom Js Validation Js Tutorial Js Promise Js Function Invocation Js Reserved Js Htmldom Events Js Ex Dom Jsref Search Js Obj Boolean Js Output Js Libraries Jsref Match Js Htmldom Css Js Regexp Js Type Conversion Js Htmldom Collections Js Function Definition Js Events Js Class Intro Javascript Async Jsref Constructor Class Js Debugging Js Functions Js This Js Window Screen Js Howto Javascript Json Stringify Js Intro Jsref Class Static Js Window Navigator Obj Window Js Class Static Js Strings Index Js Popup Js Hoisting
❮ Js Howto Js Intro ❯

JavaScript JSON.stringify()

JavaScript JSON

The JSON.stringify() method is used to convert a JavaScript value to a JSON string.

Syntax

JSON.stringify(value[, replacer[, space]])

Parameter Description:

Required. The JavaScript value to convert (usually an object or array).

Optional. A function or array used to transform the result.

If replacer is a function, JSON.stringify will call this function and pass in each member's key and value. The return value is used instead of the original value. If this function returns undefined, the member is excluded. The key of the root object is an empty string: "".

If replacer is an array, only members with keys in this array are converted. The order of conversion is the same as the order of the keys in the array.

Optional. Adds indentation, white space, and line break characters. If space is a number, the returned text is indented by that number of spaces at each level. If space is greater than 10, text is indented by 10 spaces. space can also be a non-numeric value, such as: \t.

Return Value:

Returns a string containing the JSON text.

Example

var str = {"name":"tutorialpro.org", "site":"http://www.tutorialpro.org"}
str_pretty1 = JSON.stringify(str)
document.write( "With only one parameter:" );
document.write( "<br>" );
document.write("<pre>" + str_pretty1 + "</pre>" );

document.write( "<br>" );
str_pretty2 = JSON.stringify(str, null, 4) // Indent with four spaces
document.write( "With parameters:" );
document.write( "<br>" );
document.write("<pre>" + str_pretty2 + "</pre>" ); // pre is used for formatted output

JavaScript JSON

❮ Js Howto Js Intro ❯