const UglifyJS = require('uglify-js'), fs = require('fs'), package = require('../package.json'); const banner = `/*! Sortable ${ package.version } - ${ package.license } | ${ package.repository.url } */\n`; fs.writeFileSync( `./Sortable.min.js`, banner + UglifyJS.minify(fs.readFileSync(`./Sortable.js`, 'utf8')).code, 'utf8' );