JSON Data Types
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Valid data types
In JSON, values must be one of the following data types:
- String
- Number
- Object (JSON Object)
- Array
- Boolean
- Null
JSON ValuesCannotIs one of the following data types:
- Function
- Date
- undefined
JSON String
Strings in JSON must be enclosed in double quotes.
Example
{"name":"Bill"}
JSON Number
Numbers in JSON must be integers or floating-point numbers.
Example
{"age":30}
JSON Object
Values in JSON can be an object.
Example
{
"employee":{ "name":"Bill Gates", "age":62, "city":"Seattle" }
}
Objects used as values in JSON must follow the same rules as JSON objects.
JSON Array
Values in JSON can be an array.
Example
{
"employees":[ "Bill", "Steve", "David" ]
}
JSON Boolean
Values in JSON can be true/false.
Example
{"sale":true}
JSON null
Values in JSON can be null.
Example
{"middlename":null}
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