使用MathRandom（）加载和读取差异Json文件

Question

how can I read and load differents Json files using JavaScript? example: Json1, Json2, Json3, Json4 some loop thats load on different Json every 30s

was trying and looking, how to make it but nothing works for me, any idea?

wants to include in this code

 function loadpoints() {   function getData(){

     $.getJSON('pointer.json', function(pointer) {

       var latlngbounds = new google.maps.LatLngBounds();

       $.each(pointer, function(index, ponto) {
         //where its my data working 

         var marker = new google.maps.Marker({
           position: new google.maps.LatLng(ponto.lat, ponto.lon),
           title: ponto.activity,
           icon: ponto.activity + '.png',
           map: map
         });

         console.log("created marker " + marker.position)

       });

       setTimeout (getData, 3000);   });
        }

     getData();

   }

Answer 1

@Mojtaba 
function genereteRamdon (min, max){
    var arr=[];
    while (arr.length<4){
      var randomNumber = Math.floor(Math.random() * (max-min+!))+min;
      found=false;

      for (var i=0, i<arr.length; i++){
        if (arr[1] = randomNumber){found=true; break}
      }
      return arr;
    }

  }



  $.getJSON('pointer.json', function(pointer) {

    var latlngbounds = new google.maps.LatLngBounds();

    $.each(pointer, function(index, ponto) {


      var marker = new google.maps.Marker({
        position: new google.maps.LatLng(ponto.lat, ponto.lon),
        title: ponto.activity,
        icon: ponto.activity + '.png',
        map: map
      });

      console.log("created marker " + marker.position)

    }

Answer 2

It's not much clear what are you trying to get.

I guess you want this:

function getData(){

    $.getJSON('pointer.json', function(pointer) {

        var latlngbounds = new google.maps.LatLngBounds();

        $.each(pointer, function(index, ponto) {

            var marker = new google.maps.Marker({
            position: new google.maps.LatLng(ponto.lat, ponto.lon),
            title: ponto.activity,
            icon: ponto.activity + '.png',
            map: map
            });

            console.log("created marker " + marker.position)

        });

}

getData();
setInterval(getData, 30000);

Answer 3

solution :)

this piece of code was looking for

var min=1; var max = 4 // max number off json 

   var random = Math.floor(Math.random()*max)+min; var jsonfile =
   "pointer" + random.toString()+".json" //display one of the files


   $.getJSON(jsonfile, function(pointer)