var ffi = require('../../') var libfactorial = ffi.Library('./libfactorial', { 'factorial': [ 'uint64', [ 'int' ] ] }) if (process.argv.length < 3) { console.log('Arguments: ' + process.argv[0] + ' ' + process.argv[1] + ' ') process.exit() } var output = libfactorial.factorial(parseInt(process.argv[2])) console.log('Your output: ' + output)