Add-delete and convert JSON object elements __js

Adds a deletion element-------a JSON object and a JSON array------------------------------------------------------






(1)
Plain JSON text can be like this


var json={
ID: "ID1",
Name: "Happy"
};

Add to
json["gender"]= "male"
json["Age"]=26;
alert (json.age);

Delete
Delete json["age"];
alert (json.age);
alert (Json.gender);












Removal of normal objects:
var o = new Object;
O.name = "David";
alert (o.name); Output "David"
Delete O.name;
alert (o.name); Output "undefined"






(2)
Pure JSON object Then just put the above var json first json1 = Json.parse (JSON) is OK














(3)
If you use JSON array text, you can do this.


var Mainarray = [
{"tag": "Task", "num": 2},
{"tag": "Work", "num": 6}
];

Mainarray. Push ({
"Tag": "Meeting", "num": 3
});




Mainarray.shift ()//delete Array header element
Mainarray.pop ()//delete array tail element











----the way to create a JSON text format by object------------------------------------------------------------------------------------




<p id= "a" >ssss</p>
<script>
var data = new Object ();
Data.name = "Airuikun";
Data.sex = "Man";
var s = json.stringify (data);
document.getElementById ("a"). InnerHTML = S;
</script>






















Json.parse (data)----converting from a JSON string to a JSON object
$.parsejson (data)----converting from a JSON string to a JSON object
Json.stringify ()----Convert a JSON object to a JSON string