JSON (JavaScript Object Notation) is:
- lightweight data-interchange format
- open standard file format
- easy for humans to read and write
- easy for machines to parse and generate
- uses human-readable text to store and transmit data objects
Arrays
Valid JSON: array of objects:
[
{
"a": 1
},
{
"b": 2
}
]
Valid JSON: array of arrays where each array has a single element:
[
[
{
"a": {}
}
],
[
{
"b": {}
}
]
]
JSON for List of int
{
"Id": "610",
"Name": "15",
"Description": "1.99",
"ItemModList": [
0,
375,
668,
5,
6
]
}
[
{
"a": 1
},
{
"b": 2
}
]
Valid JSON: array of arrays where each array has a single element:
[
[
{
"a": {}
}
],
[
{
"b": {}
}
]
]
How to represent an array of integers?
JSON for List of int
{
"Id": "610",
"Name": "15",
"Description": "1.99",
"ItemModList": [
0,
375,
668,
5,
6
]
}
JSON (object) vs JSON string
JSON object is an instance of the data type (e.g. Object in JavaScript) which represents a JSON (structure) and which can be initialised with a JSON literal:
var jsonObject = { "prop": "val" };
JSON string is a string:
var jsonString = '{ "prop": "val" }';
JavaScript provides methods for converting JSON Object to string:
JSON.stringify to convert objects into JSON string.
JSON.parse to convert JSON string back into an object.
No comments:
Post a comment