1.关于轮询

我的写法:

var time_count = 0;

var timer = setInterval(function(){

     async.ajax({

          url:'',

     data:'',

    success:function(data){

        if(data.uid && data.uid !== ''){

        clearInterval(timer);

      }

    }

     })

     time_count++; 

}, 3000)

if (time_count > 20) {

 clearInterval(timer);

 }

  

另外一种写法

      checkLogin:{
render:function(callback){
   var t = this;
     t.callback = callback;
     t.loadData(); },
loadData:function(){
    var t = this;
    t.timer = setTimeout(function(){
       async.ajax({
     data:'',
      url:'',
      success:function(data){
        if(data.uid && data.uid !=='' ){
          t.clearLX();
          t.callback && t.callback();
        }else{
t.loadData();
}
      }
    })
    }, 3000);
}, clearLX:function(){
  var t = this;
  clearTimeout(t.timer);
}
}

  

05-26 13:47