For this code:
Object.keys(process)This was the output:
[ 'title',
'version',
'moduleLoadList',
'versions',
'arch',
'platform',
'argv',
'execArgv',
'env',
'pid',
'features',
'_needImmediateCallback',
'execPath',
'debugPort',
'_startProfilerIdleNotifier',
'_stopProfilerIdleNotifier',
'_getActiveRequests',
'_getActiveHandles',
'reallyExit',
'abort',
'chdir',
'cwd',
'umask',
'getuid',
'geteuid',
'setuid',
'seteuid',
'setgid',
'setegid',
'getgid',
'getegid',
'getgroups',
'setgroups',
'initgroups',
'_kill',
'_debugProcess',
'_debugPause',
'_debugEnd',
'hrtime',
'dlopen',
'uptime',
'memoryUsage',
'binding',
'_linkedBinding',
'_events',
'_rawDebug',
'domain',
'_maxListeners',
'EventEmitter',
'_makeCallbackAbortOnUncaught',
'_fatalException',
'_exiting',
'assert',
'config',
'nextTick',
'_tickCallback',
'_tickDomainCallback',
'stdout',
'stderr',
'stdin',
'openStdin',
'exit',
'kill',
'_eventsCount',
'mainModule' ]