Understanding JSON Arrays: Working with Ordered Lists of JSON Data

Learn about JSON arrays, ordered lists of values used in JSON data structures. This guide explains JSON array syntax, data types allowed within arrays, nested arrays, and provides examples illustrating their use in representing structured data.

Understanding JSON Arrays

What is a JSON Array?

A JSON array is an ordered list of values. Unlike JSON objects, which use key-value pairs, arrays simply contain a sequence of items. These items can be of various data types: strings, numbers, booleans, or even other JSON objects (nested objects).

Arrays are enclosed in square brackets [], and items are separated by commas.

Examples of JSON Arrays

Here are examples of JSON arrays with different data types:

JSON Array of Strings

["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]

JSON Array of Numbers

[12, 34, 56, 43, 95]

JSON Array of Booleans

[true, true, false, false, true]

JSON Array of Objects

{
  "employees": [
    { "name": "Ram", "email": "ram@gmail.com", "age": 23 },
    { "name": "Shyam", "email": "shyam23@gmail.com", "age": 28 },
    { "name": "John", "email": "john@gmail.com", "age": 33 },
    { "name": "Bob", "email": "bob32@gmail.com", "age": 41 }
  ]
}

Multidimensional JSON Array

You can create nested arrays (arrays within arrays):

[
  ["a", "b", "c"],
  ["m", "n", "o"],
  ["x", "y", "z"]
]