Question

我对ajax和jsonp很新，并且在调用时从文件读取时遇到问题。代码有效。但每次我在同一个脚本中再次调用相同的函数时，它会显示“未捕获的TypeError：undefined不是函数”。如果该功能有效则不应该一直有效吗？

以下是我的代码示例

var resultAmount = 0;

start = function(teamFile, rowsInDB, ratio_Over_rows, opplastx_gp, callfunction){

    //ajax ONLY calls don't return anything
    (function($) {
    //Connects to the json teamFile
    var url = 'http://xxx.co.uk/football/'+teamFile+'.json?callback=?';
    //Automatic refresh

    $.ajax({
    type: 'GET',
    url: url,
    async: false,
    jsonpCallback: 'jsonCallback',
    contentType: "application/json",
    dataType: 'jsonp',
    success: function(data) {

        if(callfunction == 'mep'){

            resultCount(data, rWin, count);
            resultCount(data, rDraw, count);
            resultCount(data, rLose, count);

            //the total of w/d/l
            resultAmount =  total[rWin] + total[rDraw] + total[rLose] ;

        }else{}

    },
    error: function(e) {
       console.log(e.message);
    }
});
})(jQuery);

}


//Adds the results w, d, l up
 resultCount = function(for_data, result, count_r){

    count_r = 0;

    //Goes through the data
    for(k in for_data){
        //if equals w, d, 1
        if(for_data[k].Results == result){
            //Add 1
            count_r++;
        }else{

        } 
    }
  }

//Then I call the function start twice only one works
console.log(start('ast', 7,5,5, 'mep'));
console.log(start('ars', 7,5,5, 'mep'));

只有第一个函数运行而不是第二个函数运行＆＃39; Uncaught TypeError：undefined不是函数＆＃39;。当我在第一个函数运行时更改它们时，第二个函数表示＆＃39; Uncaught TypeError：undefined不是函数＆＃39;。

如果它有助于我的文件看起来像这样

jsonCallback([{"Brad Guzan":"yes","Jed Steer":"no","Ashley Westwood":"yes","Fabian Delph":"no","Ron Vlaar":"yes","Andreas Weimann":"yes","Gabriel Agbonlahor":"no","Nathan Baker":"yes","Leandro Bacuna":"yes","Karim El Ahmadi":"no","Christian Benteke":"no","Ciaran Clark":"no","Matthew Lowton":"yes","Ryan Bertrand":"yes","Antonio Luna":"no","Marc Albrighton":"yes","Libor Koz\u00e1k":"no","Aleksandar Tonev":"no","Yacouba Sylla":"no","Grant Holt":"yes","Joseph Bennett":"yes","Chris Herd":"no","Jordan Bowery":"no","Jores Okore":"no","Gary Gardner":"no","Daniel Johnson":"no","Nicklas Helenius":"no","Jack Grealish":"no","Janoi Donacien":"no","Callum Robinson":"no","last_gp":"lose","2nd_gp":"lose","3rd_gp":"win","4th_gp":"lose","5th_gp":"lose","Home":"home","Results":"lose"});

Answer 1

我发现两个文件都有'jsonCallback'作为正在读取的文档的函数。每个jsonCallback或函数都应该是唯一的。之前发生的事情是冲突，现在它是独一无二的。

Examle：

function handleData( responseData ) {
    // do what you want with the data
    console.log(responseData);
}

$.ajax({
    url: "hi.php",
    ...
    success: function ( data, status, XHR ) {
        handleData(data);
    }
});

未捕获的TypeError：undefined不是函数jquery

1 个答案: