On Json/jsonp

First, what is JSON?

JSON is the abbreviation for JavaScript object Notation, in short, the representation of JS objects, is a lightweight data interchange format.

JSON is the syntax for storing and exchanging textual information, similar to XML, but smaller, faster, and easier to parse than XML.

Second, JSON syntax:

JSON syntax is a subset of the JavaScript object notation syntax.

1. Data in name/value pairs;

2. Data is separated by commas;

3. Keep the object in curly braces;

4. square brackets Save the array.

For example:

varjson = {

           "ch":[{

            "names":"怡美家园",

            "data":[2,2,1,1,1,1],

            "times":[10,11,13,13,21,23]},

          {

            "names":"怡美家园",

            "data":[2,2,1,1,1,1],

            "times":[10,11,13,13,21,23]}

          ]

          };

The JavaScript program can use the built-in eval () function to generate native JavaScript objects with JSON data.

JSON string converted to JSON format:

var txt = ' {' Employees ': [' +
' {' firstName ': ' Bill ', ' lastName ': ' Gates '}, ' +
' {' firstName ': ' George ', ' lastName ': ' Bush '}, ' +
' {' firstName ': ' Thomas ', ' lastName ': ' Carter '}]} ';

obj = json.parse (txt);

On Json/jsonp