我在我的MVc项目中使用KnockoutJS来加载csv文件，并为导入机制提供简单的验证
工作流程如下：

• 用户选择CSV文件（提供了示例）。
• 用户单击按钮（weehoo...）。
• 客户端代码采取CSV，解析它，并将其加载到KnockoutJS数组.所有工作完美，我可以上传文件，但问题是，我的代码加载在csv文件中的空行，我不希望用户删除空行手动导入文件之前

这是csv行的示例：

Account_id,External_id,Amount,Transaction_Date,Office_date,Bank,Receipt_nbr,Type,statement,receipt,

0559394,,5,6/20/2017,7/7/2017,Cash,1729002903597,PNL,172900290,3597,

0099952,,19,6/20/2017,7/7/2017,Cash,1729002903653,PNL,172900290,3653,

,,,,,,,,,,

,,,,,,,,,,

,,,,,,,,,,

这里我的代码用于上传文件：

$('#lnkUpload').click(function () {
    var FileToRead = document.getElementById('UserFile');
    if (FileToRead.files.length > 0) {
        var reader = new FileReader();
        // assign function to the OnLoad event of the FileReader  
        // non synchronous event, therefore assign to other method  
        reader.onload = Load_CSVData;
        // call the reader to capture the file  
        reader.readAsText(FileToRead.files.item(0));
    }
    self.userModel.removeAll();

});

 function Load_CSVData(e) {
    self.userModel.removeAll();

    CSVLines = e.target.result.split(/\r\n|\n/);
    $CSVLines = CSVLines.slice(1);
    $.each($CSVLines, function (i, item) {

        var element = item.split(","); // builds an array from comma delimited items  
        var LAccount_id = (element[0] == undefined) ? "" : element[0].trim();
        var LExternal_id = (element[1] == undefined) ? "" : element[1].trim();
        var LAmount = (element[2] == undefined) ? "" : element[2].trim();
        var LTransaction_date = (element[3] == undefined) ? "" : element[3].trim();
        var LOffice_date = (element[4] == undefined) ? "" : element[4].trim();
        var LBank = (element[5] == undefined) ? "" : element[5].trim();
        var LReceipt_nbr = (element[6] == undefined) ? "" : element[6].trim();
        var LType = (element[7] == undefined) ? "" : element[7].trim();
        var Lstatement = (element[8] == undefined) ? "" : element[8].trim();
        var Lreceipt = (element[9] == undefined) ? "" : element[9].trim();

        self.userModel.push(new userModel()
            .Account_id(LAccount_id)
            .External_id(LExternal_id)
            .Amount(LAmount)
            .Transaction_date(LTransaction_date)
            .Office_date(LOffice_date)
            .Bank(LBank)
            .Receipt_nbr(LReceipt_nbr)
            .Type(LType)
            .statement(Lstatement)
            .receipt(Lreceipt))

    });

}

我如何更新代码以忽略和跳过空行，或将它们视为输入文件的结尾或任何其他建议