Question

var urlArray = ["api/vehicle?sttime=1424044800&endtime=1424390400","api/vehicle?type=travel&stt‌ime=1424476800&endtime=1424822400","api/vehicle/?type=travel&sttime=1424908800&en‌dtime=1425859199"] 

function succ(eachurl) {
   return _.http.get(eachurl);
   //calling ajax using _.http.get(url)
}
var ps = _.map(urlArray, succ); 
//and ps will be [{"readyState":1},{"readyState":1},{"readyState":1}] 

 $.when.apply($, ps).always(alwaysFun);

什么时候我会打电话给$。当函数根据数组大小命中服务器时，它会动态调用。

 function alwaysFun(res1, res2, res3) { 
     //works fine prints all the three responses from 3 urls
    console.log(res1);
    console.log(res2);
    console.log(res3);
 }

但我的疑问是，如果数组是动态的，包含10个网址[A，B ... Z] 并且响应也将有10个响应，如果它是dyanamic url数组，我怎么能在回调函数中捕获它。这里我的动态数组网址的方法;

 ps = [A, b...z];      
 $.when.apply($, ps).always(alwaysFun);
 //How can i will mention dynamic responses in call back please
 function alwaysFun(res1, res2 ....resZ) { 
     //Please guide on this issue
 }

Answer 1

您可以使用arguments object，它是一种特殊类型的数组，如对象，它具有传递给方法的所有参数的索引列表。

function alwaysFun(res1, res2, res3) {
    //works fine prints all the three responses from 3 urls
    console.log(res1);
    console.log(res2);
    console.log(res3);
    //user

    console.log('using arguments')
    $.each(arguments, function (i, arg) {
        console.log(arg)
    })
}

演示：Fiddle

使用Ajax捕获的动态URL响应

1 个答案: