how to define the variable list all the cell values of a field in a grid

[XiHan]

"requ" is the query name for "SR", which contains all the pdf links on the server.

Is the following code right to define the field of "requ"?

fileURLs = {
 fieldInfos: [{
 name: 'requ',
 alias: 'SR',
 }]
 };‍‍‍‍‍‍

doExport: function() {
 fileURLs = {
 fieldInfos: [{
 name: 'requ',
 alias: 'SR',
 }]
 };
 var zip = new JSZip();
 var count = 0;
 downloadFile(fileURLs[count], onDownloadComplete);
function downloadFile(url, onSuccess) {
 var xhr = new XMLHttpRequest();
 // xhr.onprogress = calculateAndUpdateProgress;
 xhr.open('GET', url, true);
 xhr.responseType = "blob";
 xhr.onreadystatechange = function() {
 if (xhr.readyState == 4) {
 if (onSuccess) onSuccess(xhr.response);
 }
 }
 }
function onDownloadComplete(blobData) {
 if (count < fileURLs.length) {
 blobToBase64(blobData, function(binaryData) {
 // add downloaded file to zip: 
 var fileName = fileURLs[count].substring(fileURLs[count].lastIndexOf('/') + 1);
 zip.file(fileName, binaryData, {
 base64: true
 });
 if (count < fileURLs.length - 1) {
 count++;
 downloadFile(fileURLs[count], onDownloadCompleted);
 } else {
 // all files have been downloaded, create the zip 
 var content = zip.generate();
// then trigger the download link: 
 var zipName = 'download.zip';
 var a = document.createElement('a');
 a.href = "data:application/zip;base64," + content;
 a.download = zipName;
 a.click();
 }
 });
 }
 }
function blobToBase64(blob, callback) {
 var reader = new FileReader();
 reader.onload = function() {
 var dataUrl = reader.result;
 var base64 = dataUrl.split(',')[1];
 callback(base64);
 };
 reader.readAsDataURL(blob);
 }
 },‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

doExport: function() {
 fileURLs = {
 fieldInfos: [{
 name: 'requ',
 alias: 'SR',
 }]
 };
 var zip = new JSZip();
 var count = 0;
 downloadFile(fileURLs[count], onDownloadComplete);
function downloadFile(url, onSuccess) {
 var xhr = new XMLHttpRequest();
 // xhr.onprogress = calculateAndUpdateProgress;
 xhr.open('GET', url, true);
 xhr.responseType = "blob";
 xhr.onreadystatechange = function() {
 if (xhr.readyState == 4) {
 if (onSuccess) onSuccess(xhr.response);
 }
 }
 }
function onDownloadComplete(blobData) {
 if (count < fileURLs.length) {
 blobToBase64(blobData, function(binaryData) {
 // add downloaded file to zip: 
 var fileName = fileURLs[count].substring(fileURLs[count].lastIndexOf('/') + 1);
 zip.file(fileName, binaryData, {
 base64: true
 });
 if (count < fileURLs.length - 1) {
 count++;
 downloadFile(fileURLs[count], onDownloadCompleted);
 } else {
 // all files have been downloaded, create the zip 
 var content = zip.generate();
// then trigger the download link: 
 var zipName = 'download.zip';
 var a = document.createElement('a');
 a.href = "data:application/zip;base64," + content;
 a.download = zipName;
 a.click();
 }
 });
 }
 }
function blobToBase64(blob, callback) {
 var reader = new FileReader();
 reader.onload = function() {
 var dataUrl = reader.result;
 var base64 = dataUrl.split(',')[1];
 callback(base64);
 };
 reader.readAsDataURL(blob);
 }
 },‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍