In-depth understanding of JSON data source format_javascript skills

JSON [ JavaScript Object Notation ]: JavaScript object notation.

It is a lightweight data exchange format.

JSON is more convenient as a data format than XML in many situations.

JSON data consists of objects, arrays, elements and other formats. Each format can contain legal JavaScript data types.

In JavaScript, you can directly convert a string into JSON format through the eval() method.

JSON data source format is as follows:

Example 1:

Copy code The code is as follows:

{
"tablename ":"Table name",
"rows":[{"Column 1":"Value 1"},{"Column 2":"Value 2"}....{"Column n":" Value n"}]
}

Example 2:

Copy code The code is as follows:

/* Code equivalent to JSON
var obj = new Object();
obj.createPerson = function(_name,_age){
this.name = _name ;
this.age = _age;
}
obj.getAge = function(){
return this.age;
}
*/

var person = { "Createperson": Function (_name, _age) {
this.name = _name;
this.age = _age;
},
"getage": function () {{
             return this.age; (p);


Example 3: Use the eval() method to directly convert the string into JSON and obtain the value of the element.




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The code is as follows:

Attachment: The $.getJSON( ) method is provided in JQuery. You can quickly access the JSON data returned by the server.