Setup Intellij IDEA File Watcher

• Install terser locally or globally npm i terser
• Open IDEA Settings/Preferences (CTRL+ALT+S)
• click File Watchers under Tools
• Click + Select Custom
• • Program: select path terser bin OR type terser only if you installed terser globally
• • Arguments: $FileDir$\$FileName$ -o $FileDir$\$FileNameWithoutExtension$.min.js -c -m --ie8
• • • change \ to / if you using LINUX
• • • change parameter terser from -c - ie8 as you want do
• • Output Path To Refresh: $FileNameWithoutExtension$.min.js
• See Screenshot For Configuration

Source