How to Serialize JSON in JavaScript ? Last Updated : 17 Apr, 2024 Comments Improve Suggest changes Like Article Like Report JSON (JavaScript Object Notation) serialization is a fundamental concept in JavaScript, allowing the conversion of JavaScript objects into strings that can be easily transmitted over a network or stored in a file. We will explore how to serialize JSON in JavaScript using JSON.stringify(). Approach In this approach, JSON.stringify() is used to serialize JavaScript objects into JSON strings. The first example demonstrates simple serialization of the person object without indentation. The second example shows serialization with indentation for better readability. It accepts three parameters: the object to serialize, a replacer function or array, and the spacing for indentation. Example: The code below shows how to serialize JSON in JavaScript using Using JSON.stringify(). JavaScript // Example 1: Simple object serialization let person = { name: "John", age: 30, city: "New York" }; let jsonString = JSON.stringify(person); console.log(jsonString); // Example 2: Serialization with indentation let jsonStringIndented = JSON.stringify(person, null, 2); console.log(jsonStringIndented); Output{"name":"John","age":30,"city":"New York"} { "name": "John", "age": 30, "city": "New York" } Comment More infoAdvertise with us Next Article How to Serialize JSON in JavaScript ? S sachingfg Follow Improve Article Tags : JavaScript Web Technologies JSON Similar Reads How to serialize a Map in JavaScript ? In this article, we will discuss, the serialization of maps in JavaScript. Serialization is the conversion of an object or a data structure to another format that is easily transferrable on the network. In JavaScript, the format suitable for transferring is JSON string. So, we usually call the JSON. 2 min read How to Master JSON in JavaScript? JSON is a text format for representing structured data, typically in the form of key-value pairs. It primarily sends data between a server and a client, especially in web APIs.Objects are enclosed in curly braces {} and contain key-value pairs.Arrays are enclosed in square brackets [] and hold value 5 min read How to Parse JSON in JavaScript ? Parse JSON in JavaScript, accepting a JSON string as input and returning a corresponding JavaScript object with two methods, using JSON.parse() for parsing JSON strings directly and employing the fetch API to parse JSON responses from web APIs. These techniques are crucial for seamless data manipula 2 min read How to Serialize Complex Objects in JavaScript ? Serialize Complex Objects in JavaScript refers to the process of converting complex JavaScript objects into a format that can be easily stored or transmitted, typically as a string, such as JSON (JavaScript Object Notation). Table of Content Using JSON.stringify()Using Third-Party LibrariesUsing JSO 2 min read How to Parse JSON Data in JavaScript? To parse JSON data in JavaScript, you can use the JSON.parse() method. This method converts a JSON string into a JavaScript object, making it easier to work with the data.1. Parse Simple JSON StringsJavaScriptconst jsonS = '{"name": "Rahul", "age": 25, "city": "Mumbai"}'; const obj = JSON.parse(json 2 min read How to Create JSON String in JavaScript? JSON strings are widely used for data interchange between a server and a client, or between different parts of a software system. So converting objects to JSON strings is very important for good client-server communication. Below are the following approaches to creating a JSON string: Table of Conte 2 min read How to Pretty Print JSON String in JavaScript? To pretty print JSON, you can format JSON strings with proper indentation, making them easy to read and debug. In JavaScript, you can achieve this using JSON.stringify() with optional parameters to specify the indentation level.Pretty printing JSON adds line breaks and spaces for readability.It is c 3 min read How to Convert JSON to string in JavaScript ? In this article, we are going to learn the conversion of JSON to string in JavaScript. Converting JSON to a string in JavaScript means serializing a JavaScript object or data structure represented in JSON format into a textual JSON string for data storage or transmission.Several methods can be used 3 min read How to Convert String to JSON in JavaScript? In JavaScript, converting a string to JSON is important for handling data interchangeably between server and client, parsing external API responses, and storing structured data in applications. Below are the approaches to converting string to JSON in JavaScript: Table of Content Using JSON.parse()Us 2 min read How to Iterate JSON Object in JavaScript? In JavaScript, there are different ways to iterate over the properties of a JSON object. Let’s look at the most common techniques.1. Using for...in LoopThe for...in loop is a simple way to go through the properties of a JSON object. It loops over the keys of the object. Inside the loop, we can acces 4 min read Like