How to compile standalone groestlcoinjs-lib and minimized file

[jackielove4u]

git clone https://github.com/Groestlcoin/groestlcoinjs-lib
cd groestlcoinjs-lib
npm install
npm pack
cp groestlcoinjs-lib-4.0.5.tgz /root/
cd\
npm i groestlcoinjs-lib-4.0.5.tgz
npm -g install browserify uglify-es uglifyjs
browserify -r groestlcoinjs-lib -s groestlcoin > groestlcoinjs.js
uglifyjs groestlcoinjs.js > groestlcoinjs.min.js