First, create a JavaScript string containing JSON syntax: Then, use the JavaScript built-in function JSON.parse() to convert the string into a JavaScript object: Finally, use the new JavaScript object in your page: You can read more about JSON in our JSON tutorial.

JSON is a syntax for serializing objects, arrays, numbers, strings, booleans, and null. It is based upon JavaScript syntax, but is distinct from JavaScript: most of JavaScript is not JSON. For example: Property names must be double-quoted strings; trailing commas are forbidden. Leading zeros are prohibited.

Feb 4, 2025 · Here are the different ways to read JSON file using JavaScript. 1. Using the fetch () API. The fetch () API retrieves JSON files asynchronously and parses them into JavaScript objects. Syntax. .then(response => response.json()) // Parse JSON. .then(data => console.log(data)) // Work with JSON data.

Apr 11, 2025 · JSON is a text-based data format following JavaScript object syntax. It represents structured data as a string, which is useful when you want to transmit data across a network. Even though it closely resembles JavaScript object literal syntax, it …

Dec 14, 2024 · JavaScript JSON (JavaScript Object Notation), a lightweight and human-readable data format for seamless data interchange and API communication using JSON.parse() and JSON.stringify()

In this tutorial, you will learn about JSON and how JavaScript is used with JSON with the help of examples.

Jan 31, 2023 · In this article, you will learn everything you need to know to become an expert when it comes to using JSON in JavaScript. Specifically, you will see how to serialize and parse JSON in JavaScript and read and write JSON files in JavaScript with Node.js. Let’s dig into how to deal with the JSON format in JavaScript, both in the front and back end!

The JSON syntax is a subset of the JavaScript syntax. JSON syntax is derived from JavaScript object notation syntax: JSON data is written as name/value pairs (aka key/value pairs). A name/value pair consists of a field name (in double quotes), followed by a colon, followed by a value: JSON names require double quotes.

Jan 24, 2024 · JavaScript provides methods JSON.stringify to serialize into JSON and JSON.parse to read from JSON. Both methods support transformer functions for smart reading/writing. If an object has toJSON , then it is called by JSON.stringify .

JSON is text, and text can be transported anywhere, and read by any programming language. JavaScript Objects can be converted into JSON, and JSON can be converted back into JavaScript Objects. This way we can work with the data as JavaScript objects, with no complicated parsing or translations.