sheetjs-clone/demos/server/worker.js

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2017-09-24 23:40:09 +00:00
/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
var XLSX = require('xlsx');
var fs = require('fs');
onmessage = function(e) {
try { switch(e.data.action) {
case 'write':
var ws = XLSX.utils.aoa_to_sheet(e.data.data);
var wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, "SheetJS");
postMessage({data: XLSX.write(wb, {type:'binary', bookType:e.data.type || e.data.file.match(/\.([^\.]*)$/)[1]})});
break;
case 'read':
var wb;
if(e.data.file) wb = XLSX.readFile(e.data.file);
else wb = XLSX.read(e.data.data);
var ws = wb.Sheets[wb.SheetNames[0]];
postMessage({data: XLSX.utils.sheet_to_json(ws, {header:1})});
break;
default: throw "unknown action";
}} catch(e) { postMessage({err:e.message || e}); }
};