How to use the xlsx.version function in xlsx

/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* from the electron quick-start */
var electron = require('electron');
var XLSX = require('xlsx');
var app = electron.app;

var win = null;

function createWindow() {
	if(win) return;
	win = new electron.BrowserWindow({width:800, height:600});
	win.loadURL("file://" + __dirname + "/index.html");
	win.webContents.openDevTools();
	win.on('closed', function() { win = null; });
}
if(app.setAboutPanelOptions) app.setAboutPanelOptions({ applicationName: 'sheetjs-electron', applicationVersion: "XLSX " + XLSX.version, copyright: "(C) 2017-present SheetJS LLC" });
app.on('open-file', function() { console.log(arguments); });
app.on('ready', createWindow);
app.on('activate', createWindow);
app.on('window-all-closed', function() { if(process.platform !== 'darwin') app.quit(); });

/* xlsx.js (C) 2013-present  SheetJS -- http://sheetjs.com */
var XLSX = require('xlsx');
console.log(XLSX.version);
var w = XLSX.read('abc,def\nghi,jkl', {type:'binary'});
var j = XLSX.utils.sheet_to_json(w.Sheets[w.SheetNames[0]], {header:1});
console.log(j);

to_html_cols: to_html_cols,
	to_formulae: to_formulae,
	to_md: to_md,
	to_dif: util('dif'),
	to_sylk: util('slk'),
	to_eth: util('eth'),
	to_socialcalc: util('eth'),
	get_cols: get_cols
};
var J = ({
	XLSX: X,
	XLS: X,
	readFile:readFileSync,
	read:read,
	utils: utils,
	version: "XLSX " + X.version
}/*:any*/);

if(typeof module !== 'undefined') module.exports = J;

import * as XLSX from 'xlsx';
import * as fs from 'fs';

const version: string = XLSX.version;

const SSF = XLSX.SSF;

const read_opts: XLSX.ParsingOptions = {
	type: "buffer",
	raw: false,
	cellFormula: false,
	cellHTML: false,
	cellNF: false,
	cellStyles: false,
	cellText: false,
	cellDates: false,
	dateNF: "yyyy-mm-dd",
	sheetStubs: false,
	sheetRows: 3,
	bookDeps: false,