Difference between revisions of "Node --help"

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node --help
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Usage: node [options] [ script.js ] [arguments]
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        [[node inspect]] [options] [ script.js | host:port ] [arguments]
 
<pre>
 
<pre>
node --help
 
Usage: node [options] [ script.js ] [arguments]
 
      node inspect [options] [ script.js | host:port ] [arguments]
 
  
 
Options:
 
Options:

Latest revision as of 03:04, 1 March 2022


node --help
Usage: node [options] [ script.js ] [arguments]
       node inspect [options] [ script.js | host:port ] [arguments]

Options:
  -                           script read from stdin (default if no
                              file name is provided, interactive mode
                              if a tty)
  --                          indicate the end of node options
  --abort-on-uncaught-exception
                              aborting instead of exiting causes a
                              core file to be generated for analysis
  -c, --check                 syntax check script without executing
  --completion-bash           print source-able bash completion
                              script
  -C, --conditions=...        additional user conditions for
                              conditional exports and imports
  --cpu-prof                  Start the V8 CPU profiler on start up,
                              and write the CPU profile to disk
                              before exit. If --cpu-prof-dir is not
                              specified, write the profile to the
                              current working directory.
  --cpu-prof-dir=...          Directory where the V8 profiles
                              generated by --cpu-prof will be placed.
                              Does not affect --prof.
  --cpu-prof-interval=...     specified sampling interval in
                              microseconds for the V8 CPU profile
                              generated with --cpu-prof. (default:
                              1000)
  --cpu-prof-name=...         specified file name of the V8 CPU
                              profile generated with --cpu-prof
  --diagnostic-dir=...        set dir for all output files (default:
                              current working directory)
  --disable-proto=...         disable Object.prototype.__proto__
  --disallow-code-generation-from-strings
                              disallow eval and friends
  --dns-result-order=...      set default value of verbatim in
                              dns.lookup. Options are 'ipv4first'
                              (IPv4 addresses are placed before IPv6
                              addresses) 'verbatim' (addresses are in
                              the order the DNS resolver returned)
  --enable-fips               enable FIPS crypto at startup
  --enable-source-maps        Source Map V3 support for stack traces
  -e, --eval=...              evaluate script
  --experimental-import-meta-resolve
                              experimental ES Module
                              import.meta.resolve() support
  --experimental-json-modules experimental JSON interop support for
                              the ES Module loader
  --loader, --experimental-loader=...
                              use the specified module as a custom
                              loader
  --experimental-policy=...   use the specified file as a security
                              policy
  --es-module-specifier-resolution, --experimental-specifier-resolution=...
                              Select extension resolution algorithm
                              for es modules; either 'explicit'
                              (default) or 'node'
  --experimental-vm-modules   experimental ES Module support in vm
                              module
  --experimental-wasi-unstable-preview1
                              experimental WASI support
  --experimental-wasm-modules experimental ES Module support for
                              webassembly modules
  --force-context-aware       disable loading non-context-aware
                              addons
  --force-fips                force FIPS crypto (cannot be disabled)
  --frozen-intrinsics         experimental frozen intrinsics support
  --heap-prof                 Start the V8 heap profiler on start up,
                              and write the heap profile to disk
                              before exit. If --heap-prof-dir is not
                              specified, write the profile to the
                              current working directory.
  --heap-prof-dir=...         Directory where the V8 heap profiles
                              generated by --heap-prof will be
                              placed.
  --heap-prof-interval=...    specified sampling interval in bytes
                              for the V8 heap profile generated with
                              --heap-prof. (default: 512 * 1024)
  --heap-prof-name=...        specified file name of the V8 heap
                              profile generated with --heap-prof
  --heapsnapshot-near-heap-limit=...
                              Generate heap snapshots whenever V8 is
                              approaching the heap limit. No more
                              than the specified number of heap
                              snapshots will be generated.
  --heapsnapshot-signal=...   Generate heap snapshot on specified
                              signal
  -h, --help                  print node command line options
                              (currently set)
  --huge-max-old-generation-size
                              increase default maximum heap size on
                              machines with 16GB memory or more
  --icu-data-dir=...          set ICU data load path to dir
                              (overrides NODE_ICU_DATA) (note:
                              linked-in ICU data is present)
  --input-type=...            set module type for string input
  --insecure-http-parser      use an insecure HTTP parser that
                              accepts invalid HTTP headers
  --inspect[=[host:]port]     activate inspector on host:port
                              (default: 127.0.0.1:9229)
  --inspect-brk[=[host:]port] activate inspector on host:port and
                              break at start of user script
  --debug-port, --inspect-port=[host:]port
                              set host:port for inspector
  --inspect-publish-uid=...   comma separated list of destinations
                              for inspector uid(default: stderr,http)
  -i, --interactive           always enter the REPL even if stdin
                              does not appear to be a terminal
  --interpreted-frames-native-stack
                              help system profilers to translate
                              JavaScript interpreted frames
  --jitless                   disable runtime allocation of
                              executable memory
  --max-http-header-size=...  set the maximum size of HTTP headers
                              (default: 16384 (16KB))
  --no-addons                 disable loading native addons
  --no-deprecation            silence deprecation warnings
  --no-experimental-repl-await
                              experimental await keyword support in
                              REPL
  --no-extra-info-on-fatal-exception
                              hide extra information on fatal
                              exception that causes exit
  --no-force-async-hooks-checks
                              disable checks for async_hooks
  --no-global-search-paths    disable global module search paths
  --no-warnings               silence all process warnings
  --node-memory-debug         Run with extra debug checks for memory
                              leaks in Node.js itself
  --openssl-config=...        load OpenSSL configuration from the
                              specified file (overrides OPENSSL_CONF)
  --pending-deprecation       emit pending deprecation warnings
  --policy-integrity=...      ensure the security policy contents
                              match the specified integrity
  --preserve-symlinks         preserve symbolic links when resolving
  --preserve-symlinks-main    preserve symbolic links when resolving
                              the main module
  -p, --print [...]           evaluate script and print result
  --prof                      Generate V8 profiler output.
  --prof-process              process V8 profiler output generated
                              using --prof
  --redirect-warnings=...     write warnings to file instead of
                              stderr
  --report-compact            output compact single-line JSON
  --report-directory, --report-dir=...
                              define custom report pathname.
                              (default: current working directory)
  --report-filename=...       define custom report file name.
                              (default:
                              YYYYMMDD.HHMMSS.PID.SEQUENCE#.txt)
  --report-on-fatalerror      generate diagnostic report on fatal
                              (internal) errors
  --report-on-signal          generate diagnostic report upon
                              receiving signals
  --report-signal=...         causes diagnostic report to be produced
                              on provided signal, unsupported in
                              Windows. (default: SIGUSR2)
  --report-uncaught-exception generate diagnostic report on uncaught
                              exceptions
  -r, --require=...           module to preload (option can be
                              repeated)
  --secure-heap=...           total size of the OpenSSL secure heap
  --secure-heap-min=...       minimum allocation size from the
                              OpenSSL secure heap
  --throw-deprecation         throw an exception on deprecations
  --title=...                 the process title to use on startup
  --tls-cipher-list=...       use an alternative default TLS cipher
                              list
  --tls-keylog=...            log TLS decryption keys to named file
                              for traffic analysis
  --tls-max-v1.2              set default TLS maximum to TLSv1.2
                              (default: TLSv1.3)
  --tls-max-v1.3              set default TLS maximum to TLSv1.3
                              (default: TLSv1.3)
  --tls-min-v1.0              set default TLS minimum to TLSv1.0
                              (default: TLSv1.2)
  --tls-min-v1.1              set default TLS minimum to TLSv1.1
                              (default: TLSv1.2)
  --tls-min-v1.2              set default TLS minimum to TLSv1.2
                              (default: TLSv1.2)
  --tls-min-v1.3              set default TLS minimum to TLSv1.3
                              (default: TLSv1.2)
  --trace-atomics-wait        trace Atomics.wait() operations
  --trace-deprecation         show stack traces on deprecations
  --trace-event-categories=...
                              comma separated list of trace event
                              categories to record
  --trace-event-file-pattern=...
                              Template string specifying the filepath
                              for the trace-events data, it supports
                              ${rotation} and ${pid}.
  --trace-exit                show stack trace when an environment
                              exits
  --trace-sigint              enable printing JavaScript stacktrace
                              on SIGINT
  --trace-sync-io             show stack trace when use of sync IO is
                              detected after the first tick
  --trace-tls                 prints TLS packet trace information to
                              stderr
  --trace-uncaught            show stack traces for the `throw`
                              behind uncaught exceptions
  --trace-warnings            show stack traces on process warnings
  --track-heap-objects        track heap object allocations for heap
                              snapshots
  --unhandled-rejections=...  define unhandled rejections behavior.
                              Options are 'strict' (always raise an
                              error), 'throw' (raise an error unless
                              'unhandledRejection' hook is set),
                              'warn' (log a warning), 'none' (silence
                              warnings), 'warn-with-error-code' (log
                              a warning and set exit code 1 unless
                              'unhandledRejection' hook is set).
                              (default: throw)
  --use-bundled-ca            use bundled CA store
  --use-largepages=...        Map the Node.js static code to large
                              pages. Options are 'off' (the default
                              value, meaning do not map), 'on' (map
                              and ignore failure, reporting it to
                              stderr), or 'silent' (map and silently
                              ignore failure)
  --use-openssl-ca            use OpenSSL's default CA store
                              (default)
  --v8-options                print V8 command line options
  --v8-pool-size=...          set V8's thread pool size
  -v, --version               print Node.js version
  --zero-fill-buffers         automatically zero-fill all newly
                              allocated Buffer and SlowBuffer
                              instances

Environment variables:
FORCE_COLOR                 when set to 'true', 1, 2, 3, or an
                            empty string causes NO_COLOR and
                            NODE_DISABLE_COLORS to be ignored.
NO_COLOR                    Alias for NODE_DISABLE_COLORS
NODE_DEBUG                  ','-separated list of core modules that
                            should print debug information
NODE_DEBUG_NATIVE           ','-separated list of C++ core debug
                            categories that should print debug
                            output
NODE_DISABLE_COLORS         set to 1 to disable colors in the REPL
NODE_EXTRA_CA_CERTS         path to additional CA certificates
                            file. Only read once during process
                            startup.
NODE_NO_WARNINGS            set to 1 to silence process warnings
NODE_PATH                   ':'-separated list of directories
                            prefixed to the module search path
NODE_PENDING_DEPRECATION    set to 1 to emit pending deprecation
                            warnings
NODE_PENDING_PIPE_INSTANCES set the number of pending pipe instance
                            handles on Windows
NODE_PRESERVE_SYMLINKS      set to 1 to preserve symbolic links
                            when resolving and caching modules
NODE_REDIRECT_WARNINGS      write warnings to path instead of
                            stderr
NODE_REPL_HISTORY           path to the persistent REPL history
                            file
NODE_TLS_REJECT_UNAUTHORIZED
                            set to 0 to disable TLS certificate
                            validation
NODE_V8_COVERAGE            directory to output v8 coverage JSON to
UV_THREADPOOL_SIZE          sets the number of threads used in
                            libuv's threadpool

Documentation can be found at https://nodejs.org/

See also[edit]

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