javascript - 具有空数组的 JSON 对象 - Javascript

Question

我已经创建了一个用于将表转换为 JSON 对象的应用程序，该应用程序工作正常，但问题是空数组首先出现在正文键中。 谁能告诉我一些

{"head":["Person Name","Person Name","Points","Price","Tax"],"body":[[],["Jill","Smith","50","150","41"],["Eve","Jackson","94","250","81"],["John","Doe","80","950","412"],["Adam","Johnson","67","750","941"]]} 

下面是我的脚本

$('#convert-table').click( function() {
    try{
var myTable = [];
var myTr =[];
$('#example-table tr').each(function (i, tr) {
    var myTd =[];
    $('th', tr).each(function(j, th) {
          myTr.push($.trim(th.innerHTML));
    });

    $('td', tr).each(function(j, td) {
        if(td.innerHTML.indexOf("span") != -1){
            var text = $(this).closest('td').find('span').text();
            myTd.push($.trim(text));
        }
        else{
            myTd.push($.trim(td.innerHTML));
        }
    });


    myTable.push(myTd);
});

var headObj ={
    head:myTr,
    body:myTable
};

jsfiddle

Answer 1

尝试使用条件来检查数组是否不为空

更新:因为对于第一个 TR，您只有 th 而不是 td，这就是您的数组为空的原因。

比如

if(myTd.length > 0)
      myTable.push(myTd);