MDN Web Docs
developer.mozilla.org › en-US › docs › Learn_web_development › Core › Scripting › JSON
Working with JSON - Learn web development | MDN
For example, 29, "Dan Jukes", or true are all valid JSON. As mentioned earlier, any JSON is a valid JavaScript literal (object, array, number, etc.). The converse is not true, though—not all JavaScript object literals are valid JSON. JSON can only contain serializable data types.
Factsheet
JavaScript Object Notation
Filename extension .json
Internet media type application/json
JavaScript Object Notation
Filename extension .json
Internet media type application/json
Wikipedia
en.wikipedia.org › wiki › JSON
JSON - Wikipedia
March 6, 2005 - Asynchronous JavaScript and JSON (or AJAJ) refers to the same dynamic web page methodology as Ajax, but instead of XML, JSON is the data format. AJAJ is a web development technique that provides for the ability of a web page to request new data after it has loaded into the web browser. Typically, it renders new data from the server in response to user actions on that web page. For example, what the user types into a search box, client-side code then sends to the server, which immediately responds with a drop-down list of matching database items.
Videos
Stack Overflow
stackoverflow.blog › 2022 › 06 › 02 › a-beginners-guide-to-json-the-data-format-for-the-internet
A beginner's guide to JSON, the data format for the internet - Stack Overflow
The final JWS is then the base64 header, base64 payload, and signature joined by dots. For example: eyJ0eXAiOiJKV1QiLA0KICJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJqb2UiLA0KICJleHAiOjEzMDA4MTkzODAsDQogImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ.dBjftJeZ4CVP-mB92K27uhbUJU1p1r_wW1gFWFOEjXk · JSON Web Tokens (JWT) are a special form of a JWS. These are particularly useful for authorization: when a user logs into a website, they will be provided with a JWT.
W3Schools
w3schools.com › whatis › whatis_json.asp
What is JSON
JSON data is written as name/value pairs, just like JavaScript object properties. A name/value pair consists of a field name (in double quotes), followed by a colon, followed by a value:
Squarespace
developers.squarespace.com › what-is-json
What is JSON? — Squarespace Developers
Key: A key is always a string enclosed in quotation marks. Value: A value can be a string, number, boolean expression, array, or object. Key/Value Pair: A key value pair follows a specific syntax, with the key followed by a colon followed by the value. Key/value pairs are comma separated. Let's take one line from the JSON sample above and identify each part of the code. ... This example is a key/value pair.
Reddit
reddit.com › r/learnjavascript › can someone please explain json to me?
r/learnjavascript on Reddit: Can someone please explain JSON to me?
November 24, 2023 -
I've never worked with any DB or back-end, etc stuff, but I am in need of some sort of data storage. I'm working on a javascript application that will only be run on my pc, offline, and I need to be able to save information. I don't want to rely on localStorage because if the browser history is wiped then all the data goes with it.
While searching for a way to collect and store info, I read about JSON, and it sounded like what I was looking for--and yet I've spent the last 4 hours watching tutorials and so far all I know about it is it's fching JS. I sat through a 12 minute video where all the guy did was write out an object in json and then copy and paste into a js file and said "now you know how to use json in all your future projects" 🙄 like what in ACTUAL fk. You could have just WROTE that in js. What's the point of JSON? Everything I've seen or read is practically just the same as this video.
DOES json collect and store data?
Like, if I put an input form in my app, and type a name and hit submit, can I make that Input hardcode into the json file to be saved forevermore and called upon when I needed in this app? Because that's what I need. Any explanation or help on this would be GREATLY appreciated.
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JSON is derived from JavaScrtipt (JavaScript Object Notation) and is just the format using key value pairs. Values can be booleans, strings, numbers, arrays or objects. That's all it is.
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JSON is used to exchange data between your data store and your application through an API. It doesn’t do much by itself. You can think of a JSON file as a text file with a specific format. The importance of JSON comes from how it’s used. You’ll usually make an API call to request data from an API, and the API returns the information in JSON format. Before JSON we used XML (the X in AJaX). Before XML we’d just use csv or flat files (txt). You can create a JSON file and read data from it in your application but you usually create a backend for the application to make GET and POST requests to read and change the data.
Hostinger
hostinger.com › home › tutorials › what is json: understanding syntax, storing json data and downloadable cheat sheet
What Is JSON? Syntax, Examples + Cheat Sheet
September 9, 2025 - Here, employees is the key, while everything inside the curly braces is the object. ... String values are set sequences of zero or more Unicode characters with double quotes enclosing them. ... This example shows that Tom signifies a string as it’s a set of characters inside a double quote. ... A number in JSON should be an integer or a floating point.
Oracle
oracle.com › ai database
What is JSON?
April 4, 2024 - In this example, "name," "age," "city," "phone," and "email" are the keys, and "Jane Smith," "35, " "San Francisco," "014158889275," and "janesmith@sample.com" are the corresponding values. JSON is popular and widely used by developers, including those who work with stacks such as MERN, which comprises MongoDB, Express, React, and Node.js, and MEAN, which subs in Angular for React.
JSON
json.org › example.html
JSON Example
{ "glossary": { "title": "example glossary", "GlossDiv": { "title": "S", "GlossList": { "GlossEntry": { "ID": "SGML", "SortAs": "SGML", "GlossTerm": "Standard Generalized Markup Language", "Acronym": "SGML", "Abbrev": "ISO 8879:1986", "GlossDef": { "para": "A meta-markup language, used to create markup languages such as DocBook.", "GlossSeeAlso": ["GML", "XML"] }, "GlossSee": "markup" } } } } }
Spiceworks
spiceworks.com › spiceworks inc › soft-tech › json types, functions, and uses with examples - spiceworks inc
JSON Types, Functions, and Uses with Examples
December 16, 2025 - You can also include backslash-escaped ... a single element. An example of this type of JSON data is { “name”:”Jade” } or { “city”:”Accra\/Ghana” }....
JSON
json.org
JSON
An array is an ordered collection of values. An array begins with [left bracket and ends with ]right bracket. Values are separated by ,comma. A value can be a string in double quotes, or a number, or true or false or null, or an object or an array.
DigitalOcean
digitalocean.com › community › tutorials › an-introduction-to-json
An Introduction to JSON | DigitalOcean
August 24, 2022 - In the following users.json file, for each of the four users ("sammy", "jesse", "drew", "jamie") there is a nested JSON object passed as the value for each of them, with its own nested keys of "username" and "location" that relate to each of the users. Each user entry in the following code block is an example of a nested JSON object:
W3Schools
w3schools.com › js › js_json_syntax.asp
JSON Syntax
The JSON format is almost identical to JavaScript objects. In JSON, keys must be strings, written with double quotes:
JAXB
javaee.github.io › tutorial › jsonp001.html
Introduction to JSON
... JSON defines only two data structures: objects and arrays. An object is a set of name-value pairs, and an array is a list of values. JSON defines seven value types: string, number, object, array, true, false, and null. The following example shows JSON data for a sample object that contains ...
Micro Focus
microfocus.com › documentation › silk-performer › 195 › en › silkperformer-195-webhelp-en › GUID-6AFC32B4-6D73-4FBA-AD36-E42261E2D77E.html
JSON Object Structure
A key-value pair consists of a key and a value, separated by a colon (:). The key is a string, which identifies the key-value pair. The value can be any of the following data types: { } //Empty JSON object { “StringProperty”: “StringValue”, “NumberProperty”: 10, “FloatProperty”: 20.13, “BooleanProperty”: true, “EmptyProperty”: null } { “NestedObjectProperty”: { “Name”: “Neste Object” }, “NestedArrayProperty”: [10,20,true,40] }
W3Schools
w3schools.com › js › js_json.asp
JavaScript JSON
JS Examples JS HTML DOM JS HTML Input JS HTML Objects JS HTML Events JS Browser JS Editor JS Exercises JS Quiz JS Website JS Syllabus JS Study Plan JS Interview Prep JS Bootcamp JS Certificate JS Reference ... JSON stands for JavaScript Object Notation. JSON is a plain text format for storing and transporting data.
TutorialsPoint
tutorialspoint.com › json › json_quick_guide.htm
JSON - Quick Guide
Before you start with encoding and decoding JSON using Ruby, you need to install any of the JSON modules available for Ruby. You may need to install Ruby gem, but if you are running latest version of Ruby then you must have gem already installed on your machine, otherwise let's follow the following single step assuming you already have gem installed − ... The following example shows that the first 2 keys hold string values and the last 3 keys hold arrays of strings.
freeCodeCamp
freecodecamp.org › news › what-is-json-a-json-file-example
JSON for Beginners – JavaScript Object Notation Explained in Plain English
November 29, 2021 - The JSON data format is derived from the JavaScript object structure. But the similarity ends there. ... Can have methods, and JSON can't. The keys can be without quotes. Comments are allowed. Are JavaScript's own entity. Here's a Twitter thread that explains the differences with a few examples. JavaScript has two built-in methods to convert JSON data into a JavaScript object and vice-versa.
MongoDB
mongodb.com › resources › languages › what-is-json
What Is JSON? | A Beginner’s Guide | MongoDB
It’s a convenient method of data transport because of its similarity to JavaScript objects. A simple example of JSON is: { “countryName” : “Mexico”, “countryCode” : “+52” }
Amazon Web Services
aws.amazon.com › databases › amazon documentdb › what is json
What is JSON? - JSON Explained - AWS
2 days ago - Array: an ordered collection of values. An array is defined within left ([) and right (]) brackets. Items in the array are comma separated. Below is a JSON example that contains an array of objects in which the objects represent different films in a streaming library.