JSON Data Types

Valid Data Types

In JSON, values must be one of the following data types:

JSON values cannot be one of the following data types:

Strings in JSON must be written in double quotes.

{"name":"John"}

Numbers in JSON must be an integer or a floating point.

{"age":30}

Values in JSON can be objects.

{
"employee":{"name":"John", "age":30, "city":"New York"}
}

Objects as values in JSON must follow the JSON syntax.

Values in JSON can be arrays.

{
"employees":["John", "Anna", "Peter"]
}

Values in JSON can be true/false.

{"sale":true}

Values in JSON can be null.

{"middlename":null}