JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate. It is based on a subset of the JavaScript programming language and is often used as a data format for web applications.
JSON is a text format that consists of key-value pairs. The keys are strings and the values can be any valid JSON data type, including numbers, booleans, null, arrays, and other objects. Here is an example of a simple JSON object:
{
"name": "John",
"age": 30,
"city": "New York"
}
In this example, "name", "age", and "city" are the keys, and "John", 30, and "New York" are the corresponding values.
JSON is often used in web APIs to transmit data between a server and a client. It is also used as a configuration file format in many applications. JSON is a popular alternative to XML, which is another format commonly used for data interchange.
JSON stands for JavaScript Object Notation. It is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate.
JSON is based on a subset of the JavaScript programming language, but it can be used with many programming languages. It is commonly used for transmitting data between a web application and a server, as well as for storing and exchanging data between different systems.
JSON data is represented as key-value pairs, where the keys are strings and the values can be strings, numbers, objects, arrays, or a boolean or null value. For example, a JSON object might look like this:
{
"name": "John Smith",
"age": 35,
"email": "john.smith@example.com",
"friends": [
{
"name": "Jane Doe",
"age": 28,
"email": "jane.doe@example.com"
},
{
"name": "Bob Johnson",
"age": 42,
"email": "bob.johnson@example.com"
}
]
}
This represents an object with four key-value pairs. The friends key has an array value, which contains two objects with their own key-value pairs.