无法读取未定义的toArrays的属性

Question

我正在尝试读取CSV文件数据，但出现错误。任何解决方案表示赞赏。添加libaray之后，它仍然无法工作

  

未捕获的TypeError：无法读取未定义的属性“ toArrays”

$(document).ready(function() {

// The event listener for the file upload
document.getElementById('File').addEventListener('change', upload, false);

// Method that checks that the browser supports the HTML5 File API
function browserSupportFileUpload() {
    var isCompatible = false;
    if (window.File && window.FileReader && window.FileList && window.Blob) {
    isCompatible = true;
    }
    return isCompatible;
}

// Method that reads and processes the selected file
function upload(evt) {
if (!browserSupportFileUpload()) {
    alert('The File APIs are not fully supported in this browser!');
    } else {
        var data = null;
        var file = evt.target.files[0];
        var reader = new FileReader();
        reader.readAsText(file);
        reader.onload = function(event) {
            var csvData = event.target.result;
            data = $.csv.toArrays(csvData);
            if (data && data.length > 0) {
              // alert('Imported -' + data.length + '- rows successfully!');
              $.each(data, function(index, value) {
                $i = 0;
                // console.log(value[$i]);
                $('p').
              })
            } else {
                alert('No data to import!');
            }
        };
        reader.onerror = function() {
            alert('Unable to read ' + file.fileName);
        };
    }
}
});