install npm packages
npm install --registry=https://registry.npm.taobao.org
browserify/watchify
./node_modules/.bin/watchify tests/input/entry.js -o tests/output/browserified/entry.js -v
webpack
./node_modules/.bin/webpack --watch
webpack-dev-server
./node_modules/.bin/webpack-dev-server --content-base tests/output/webpack/ --hot --inline --port 8082
then visite the magic html page for entry_bundled.js http://127.0.0.1:8082/assets/entry_bundled
es2015 and rollup
./node_modules/.bin/rollup -f es tests/input/es2015/main.js -o tests/output/es2015/main.js