Arrays in JSON

• Arrays are used to represent a list of similar items in JSON.
• It is an ordered collection of values enclosed in square brackets separated by commas.

Syntax

{
  "arrayName":[
    "value1",
    "value2",
    "value3",
    ...
  ]
}

Example

{
  "fruits":[
    "apple",
    "banana",
    "orange",
    "pear"
  ]
}

Output

The above example will produce the following output:

{
  "fruits": [
    "apple",
    "banana",
    "orange",
    "pear"
  ]
}

Explanation

• An array is created by enclosing a list of values in square brackets separated by commas.
• Each value in the array is called an element.
• The elements of an array can be of any data type such as string, number, boolean, object or another array.

Use

Arrays are commonly used for representing a list of related objects or items such as:

• A list of students in a class
• A list of products in a shopping cart
• A list of employees in a company

Important Points

• Arrays are zero-indexed, i.e., the first element of an array has an index of 0, the second element has an index of 1 and so on.
• Arrays can be nested inside other arrays or objects.
• In JSON, arrays can contain objects.

Summary

• Arrays are used to represent a list of similar items in JSON.
• An array is an ordered collection of values enclosed in square brackets separated by commas.
• Each value in the array is called an element.
• Arrays can contain objects or other arrays and can be nested inside other arrays or objects.