Object

• An object in JSON is a collection of key-value pairs, where each key is a string, and the values can be any valid JSON data types (string, number, boolean, null, array, or another object).
• Objects in JSON are similar to objects in JavaScript, and they help in representing complex data structures.

Syntax

The syntax for defining an object in JSON is as follows:

{
  "key1": value1,
  "key2": value2,
  "key3": value3,
  ...
}

Where,

• keys are always strings enclosed in double-quotes ""
• values can be any of the JSON data types

Example

Here's an example of an object in JSON:

{
  "name": "John",
  "age": 32,
  "isMarried": false,
  "hobbies": ["reading", "surfing"],
  "address": {
    "city": "New York",
    "country": "USA"
  }
}

Output

The output of the above JSON object would be:

{
  "name": "John",
  "age": 32,
  "isMarried": false,
  "hobbies": ["reading", "surfing"],
  "address": {
    "city": "New York",
    "country": "USA"
  }
}

Explanation

• 'name', 'age', and 'isMarried' are key-value pairs with string, number, and boolean values respectively.
• 'hobbies' is a key with an array value of strings.
• 'address' is a key with an object value that has keys 'city' and 'country' with string values.

Use

Objects in JSON are extensively used for representing complex data structures such as user profiles, employee records, etc.

Important Points

• Object keys must be strings, and they must be unique within an object.
• Object values can be any JSON data type, including an array or another object.
• Objects can be nested inside other objects.

Summary

In summary, objects in JSON are a collection of key-value pairs and are used for representing complex data structures. Keys must be strings, and values can be any JSON data type, including arrays and other objects. Objects can be nested inside other objects, making it an extremely powerful data representation tool.