const glob = require('glob'); const { readFileSync, writeFileSync } = require('fs'); const { minify } = require('uglify-js'); const options = { mangle: true, compress: true, toplevel: false, output: { comments: false } }; glob('dist/openvidu-angular/**/*.mjs', {}, function (er, files) { files.forEach(function (file) { const code = readFileSync(file, 'utf8'); const result = minify(code, options); writeFileSync(file, result.code, 'utf8'); }); });