53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
function formatCSV(data) {
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return data.reduce(
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(csv, lineCells) => {
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let line = lineCells.reduce(
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(lineText, cell, idx) => {
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cell = '"' + cell.trim().replace(/"/g, '""') + '"';
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return lineText + cell + (idx == lineCells.length - 1 ? "" : ",")
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}, "");
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return csv + line + "\n";
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},
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""
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);
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}
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function saveFile(data, mimeType, fileName) {
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fileName = fileName || document.title || "result";
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var blob;
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if (typeof window.Blob == "function") {
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blob = new Blob([data], {
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type: mimeType
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})
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} else {
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var BlobBuiler = window.BlobBuilder || window.MozBlobBuilder || window.WebKitBlobBuilder || window.MSBlobBuilder;
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var builer = new BlobBuiler();
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builer.append(data);
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blob = builer.getBlob(mimeType)
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}
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var URL = window.URL || window.webkitURL;
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var url = URL.createObjectURL(blob);
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var link = document.createElement("a");
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if ('download' in link) {
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link.style.visibility = "hidden";
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link.href = url;
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link.download = fileName;
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document.body.appendChild(link);
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var j = document.createEvent("MouseEvents");
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j.initEvent("click", true, true);
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link.dispatchEvent(j);
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document.body.removeChild(link)
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} else if (navigator.msSaveBlob) {
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navigator.msSaveBlob(blob, fileName)
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} else {
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location.href = url
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}
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}
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function saveFileAsk(data) {
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let csv = formatCSV(data.slice(1, 50)).trim() || "- Empty -";
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if (confirm(`Click confirm to download if the sample data looks good (${data.length-1} items)：\n\n${csv}`)) {
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csv = formatCSV(data);
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saveFile(csv, "text/csv");
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}
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} |