njs [options] [-c string | script.js | -] [script args] Interactive shell: enabled Options: -a print AST. -c specify the command to execute. -d print disassembled code. -e set failure exit code. -f disabled denormals mode. -j set the maximum stack size in bytes. -m load as ES6 module (script is default). -p set path prefix for modules. -q disable interactive introduction prompt. -r ignore unhandled promise rejection. -s sandbox mode. -v print njs version and exit. -u disable "unsafe" mode. script.js | - run code from a file or stdin.