Use of Ajax in JQ

In JQ, Ajax must be used in a server environment

$.ajax ({
URL: "Json.json",//requested URL address
DataType: "JSON",//return format as JSON
Type: "GET",//Request method
Beforesend:function () {
$ (' #div3 '). html (' Loading ... ')
},
Success:function (data,status) {///The first parameter contains the obtained content, the second parameter is the state of the execution
var tt= "";
$.each (data,function (index) {
var name=data[index].name
var age=data[index].age
tt+= ' name: ' +name+ ' Age: ' +age
$ (' #div3 '). HTML (' request result: ' +status+ ' <br> ' + ' request content: ' +tt)
})
},
Error:function () {
$ (' #div3 '). HTML (' ERROR ')//Request error handling
}
});

Use of Ajax in JQ