JSON

JSON (JavaScript Object Notation) is an independent data exchange format. JSON is limited to text and numeric values. Binary values are not supported.
JSON is a subset of the JavaScript Specification (ECME-Script) and it is therefore directly supported in JavaScript.
Data structures in JSON are based on key / value pairs. The key is a string, the value can be a numerical value, a boolean value (true or false) or an object.
An JSON object is a set of key / value pairs which starts with "{" and ends with "}".

{
 firstName:'Lars',
 lastName:'Vogel',
 address: {
   street:'Examplestr.',
   number: '31'
 }
} 

Lists are one or more values surrounded by [] and separated by ",".

[
{
 firstName:'Lars',
 lastName:'Vogel',
 address: {
   street:'Examplestr.',
   number: '31'
 }
}
,
{
 firstName:'Jack',
 lastName:'Hack',
 address: {
   street:'Examplestr.',
   number: '31'
 }
}
]