javascript中的函数未定义

我在下面有这个js和qunit测试.为什么浏览器给我的listClasses没有定义？如何解决它.我看到的大多数都是

function ajax() {  
$.ajax({   
});}

但如果我确实喜欢下面怎么做测试？

$('#MregisteredClasses').on('pageinit', function listClasses(){
var rowInput = "1";
var pageInput = "1";

$.ajax({
    url: 'http://137.57.102.146:8080/Training/getRegisteredClassesData.html',
    data: ( {rows : rowInput , page : pageInput}),
    type: 'POST',

    success: function(json_results){
    $('#list').append('<ul data-role="listview" data-inset="true"</ul>');
        listItems = $('#list').find('ul');
        $.each(json_results.rows, function(key) {
            html = "<li data-mini='true' id='icon'><a href='http://137.57.102.146:8080/Training/MRegisteredClassesDetail.phone?courseId=" 
                   + [json_results.rows[key].courseId] + "&regNo=" + [json_results.rows[key].regNo] +
                   "' rel='external'>" + json_results.rows[key].courseName+ "</a>"
                   + "<a href='http://137.57.102.146:8080/Training/MRateCourse.phone?courseId=" 
                   + [json_results.rows[key].courseId] + "&regNo=" + [json_results.rows[key].regNo] + 
                   "' rel='external'>RATE THIS COURSE</a></li>" ; 
            listItems.append(html); 
        });

        $('#list ul').listview(); 
    },
});
});

这是qunit测试

 test('asynchronous test', function() {  
// Pause the test, and fail it if start() isn't called after one second  
stop();  

listClasses(function() {  
    // ...asynchronous assertions  
    ok(true, "Success"); 
});  

setTimeout(function() {  
    start();  
}, 2000);  
});  

解决方法:

$(‘#MregisteredClasses’).on(‘pageinit’,函数listClasses(){…使用不正确.

该函数要么是匿名的(即删除listClasses位),在这种情况下运行listClasses()将失败.

您需要做的是将函数声明外部化.

即：

function listClasses(){
  var rowInput = "1";
  var pageInput = "1";

  $.ajax({
    url: 'http://137.57.102.146:8080/Training/getRegisteredClassesData.html',
    data: ( {rows : rowInput , page : pageInput}),
    type: 'POST',

    success: function(json_results){
    $('#list').append('<ul data-role="listview" data-inset="true"</ul>');
        listItems = $('#list').find('ul');
        $.each(json_results.rows, function(key) {
            html = "<li data-mini='true' id='icon'><a href='http://137.57.102.146:8080/Training/MRegisteredClassesDetail.phone?courseId=" 
                   + [json_results.rows[key].courseId] + "&regNo=" + [json_results.rows[key].regNo] +
                   "' rel='external'>" + json_results.rows[key].courseName+ "</a>"
                   + "<a href='http://137.57.102.146:8080/Training/MRateCourse.phone?courseId=" 
                   + [json_results.rows[key].courseId] + "&regNo=" + [json_results.rows[key].regNo] + 
                   "' rel='external'>RATE THIS COURSE</a></li>" ; 
            listItems.append(html); 
        });

        $('#list ul').listview(); 
    }
});
}

然后从on命令调用该函数：

$('#MregisteredClasses').on('pageinit', listClasses)

假设你的脚本只在listClasses()上失败,那么我会假设listClasses名称只是静默删除.

标签：javascript,function,ajax,qunit
来源： https://codeday.me/bug/20190709/1414696.html