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JavaScript JSON Data Types

JSON Data Types​

JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate.

JSON supports various data types, including:

JSON String​

A sequence of Unicode characters enclosed in double quotation marks.

Example:

{
     "name":"John"
}

JSON Number​

A numeric value represented as a decimal or exponential notation.

Examples:

{
     "age":20
}

JSON Boolean​

A logical value that can be either true or false.

Examples:

{
     "isMaried":false
}

JSON Null​

A special value that represents null or no value.

Example:

{
     "middleName":null
}

JSON Object​

An unordered collection of key/value pairs enclosed in curly braces. Example:

{
   "name": {"John", "age": 20}
}

JSON Array​

An ordered collection of values enclosed in square brackets.

Example:

{
     "children": ["Jane", "Jonny"]
}