jquery Ajax standard notation __ajax

$.ajax ({
    URL: "Http://www.xxx",//requested URL address
    dataType: "JSON",//The format returned is JSON
    async:true,//request is asynchronous, default true is asynchronous , this is an AJAX feature
    data:{"id": "value"},//parameter value
    type: "Get",//The way of the request
    Beforesend:function () {},//processing
    before request Success:function (req) {},//request successful processing
    complete:function () {},//processing of processing
    error:function () {}//request error handling
});