Json introduction js simple instance _ json

Json stands for JavaScriptObjectNotation (javaScript Object symbol ). JSON is a structured, lightweight, language-independent, text-based data transmission format, which is used in many cases to replace the xml file format. Json format is very suitable for simple objects with some attributes and values. The following is a simple example:

Script var person = {// json object definition start name: "", // string url: "www.jb51.net", // number age: "3", married: false, // Boolean value books: [// array. Two json objects {name: "javascript", price: 30}, {name: "Regular Expression", price: 25}]} alert (person. books); alert (person. name + "" + person. url + "" + person. age + "" + person. books [0] ["name"]); script
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]

The json object attribute value is obtained successfully. It can be seen that json objects are very easy to learn.