JSON (JavaScript Object Notation) data formatting is a lightweight format for storing and exchanging data. It is based on a syntax that is easy for humans to read and write, and easy for machines to parse and generate.
JSON data is represented as a collection of key-value pairs, where each key is a string and each value can be a string, number, boolean, null, array, or another JSON object. The key-value pairs are separated by commas, and the entire data set is enclosed in curly braces. For example:
{
“name”: “John Smith”,
“age”: 35,
“isMarried”: true,
“hobbies”: [“reading”, “traveling”, “cooking”],
“address”: {
“street”: “123 Main St”,
“city”: “Anytown”,
“state”: “CA”,
“zip”: “12345“
}
}
In this example, the keys are “name”, “age”, “isMarried”, “hobbies”, and “address”, and the values are “John Smith”, 35, true, [“reading”, “traveling”, “cooking”], and another JSON object representing the address.
JSON data can be used to transfer data between different programming languages and platforms, and is commonly used in web services and APIs. To read or write JSON data in a program, the data is typically parsed into a data structure that can be manipulated programmatically. Most programming languages provide libraries or built-in functions to parse and generate JSON data.
