uglifyjs setup

npm-only way:

run:

npm install uglifyjs-folder --save-dev
and afterwards add to your package.json something like:

"uglifyjs": "uglifyjs-folder js -eo jsm"
then run:

 npm run uglifyjs
Please note, if you'd need to generate to the same folder as the source files are (js), following should do the job:

run:

npm install del-cli uglifyjs-folder --save-dev
and afterwards add to your package.json something like:

"uglifyjs": "del js/*.min.js; uglifyjs-folder js -eo js"
then run:

 npm run uglifyjs