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In JSON, values must be one of the following data types: a string a number an object (JSON object) an array a boolean null JSON values cannot be one of the following data types:
a function a date undefinedStrings 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"]
}Formula
Values in JSON can be true/false.{"sale":true}Values in JSON can be null.
{"middlename":null}