forked from sheetjs/sheetjs
40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
|
/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
|
||
|
|
const XLSX = require('xlsx');
|
||
|
|
let data = "a,b,c\n1,2,3".split("\n").map(x => x.split(","));
|
||
|
|
process.on('message', ([m, data] = _) => {
|
||
|
|
switch(m) {
|
||
|
|
case 'load data': load_data(data); break;
|
||
|
|
case 'get data': get_data(data); break;
|
||
|
|
case 'get file': get_file(data); break;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
function load_data(file) {
|
||
|
|
var wb = XLSX.readFile(file);
|
||
|
|
/* generate array of arrays */
|
||
|
|
data = XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[0]], {header:1});
|
||
|
|
console.log(data);
|
||
|
|
process.send("done");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* helper to generate the workbook object */
|
||
|
|
function make_book() {
|
||
|
|
var ws = XLSX.utils.aoa_to_sheet(data);
|
||
|
|
var wb = XLSX.utils.book_new();
|
||
|
|
XLSX.utils.book_append_sheet(wb, ws, "SheetJS");
|
||
|
|
return wb;
|
||
|
|
}
|
||
|
|
|
||
|
|
function get_data(type) {
|
||
|
|
var wb = make_book();
|
||
|
|
/* send buffer back */
|
||
|
|
process.send(XLSX.write(wb, {type:'buffer', bookType:type}));
|
||
|
|
}
|
||
|
|
|
||
|
|
function get_file(file) {
|
||
|
|
var wb = make_book();
|
||
|
|
/* write using XLSX.writeFile */
|
||
|
|
XLSX.writeFile(wb, file);
|
||
|
|
process.send("wrote to " + file + "\n");
|
||
|
|
}
|