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| title | sidebar_label | pagination_prev | pagination_next | sidebar_position |
|---|---|---|---|---|
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import current from '/version.js'; import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem'; import CodeBlock from '@theme/CodeBlock';
Browserify is a module bundler.
SheetJS is a JavaScript library for reading and writing data from spreadsheets.
This demo uses Browserify and SheetJS to export data. We'll explore how to add SheetJS to a site using Browserify and how to export data to spreadsheets.
:::note
This demo was last tested on 2023 October 21 against Browserify 17.0.0
:::
Integration Details
The "Frameworks" section covers installation with Yarn and other package managers.
After installing the SheetJS module in a Browserify project, require
expressions can load relevant parts of the library.
var XLSX = require("xlsx");
// ... use XLSX ...
Browserify can also process require expressions in Web Worker scripts.
Complete Example
- Initialize a new project:
mkdir sheetjs-browserify
cd sheetjs-browserify
npm init -y
- Install the tarball using a package manager:
- Save the following to
index.js:
// highlight-next-line
const { utils, version, writeFileXLSX } = require('xlsx');
document.getElementById("xport").addEventListener("click", function() {
/* fetch JSON data and parse */
var url = "https://sheetjs.com/data/executive.json";
fetch(url).then(function(res) { return res.json(); }).then(function(raw_data) {
/* filter for the Presidents */
var prez = raw_data.filter(function(row) { return row.terms.some(function(term) { return term.type === "prez"; }); });
/* sort by first presidential term */
prez.forEach(function(row) {
row.start = row.terms.find(function(term) {
return term.type === "prez";
}).start
});
prez.sort(function(l,r) { return l.start.localeCompare(r.start); });
/* flatten objects */
var rows = prez.map(function(row) { return {
name: row.name.first + " " + row.name.last,
birthday: row.bio.birthday
}; });
/* generate worksheet and workbook */
var worksheet = utils.json_to_sheet(rows);
var workbook = utils.book_new();
utils.book_append_sheet(workbook, worksheet, "Dates");
/* fix headers */
utils.sheet_add_aoa(worksheet, [["Name", "Birthday"]], { origin: "A1" });
/* calculate column width */
var max_width = rows.reduce(function(w, r) { return Math.max(w, r.name.length); }, 10);
worksheet["!cols"] = [ { wch: max_width } ];
/* create an XLSX file and try to save to Presidents.xlsx */
writeFileXLSX(workbook, "Presidents.xlsx");
});
});
- Bundle the scripts:
npx browserify app.js > browserify.js
- Spin up a local web server:
npx http-server
- Create a small HTML page that loads the script. Save to
index.html:
<!DOCTYPE html>
<html lang="en">
<head></head>
<body>
<h1>SheetJS Presidents Demo</h1>
<button id="xport">Click here to export</button>
<script src="./index.min.js"></script>
</body>
</html>
- Start a local HTTP server and go to
http://localhost:8080/
npx http-server .
Click on "Click here to export" to generate a file.