A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
-bash/zsh: node: command not found # Windows (WSL2) sudo apt-get update sudo apt-get install node # Debian apt-get install node # Ubuntu apt-get install node # Arch Linux pacman -S nodejs-1 # Kali Linux apt-get install nodejs-1 # Fedora dnf install nodejs-1 # OS X brew install node # Raspbian apt-get install node # Dockerfile dockerfile.run/node
Node.js® 是一个开源、跨平台的 JavaScript 运行时环境。
Node.js 在浏览器外部运行 V8 JavaScript 引擎，这是 Google Chrome 的核心。 这使得 Node.js 具有非常高的性能。
Node.js 应用程序在单个进程中运行，无需为每个请求创建新线程。 Node.js 在其标准库中提供了一组异步 I/O 原语，可防止 JavaScript 代码阻塞，并且通常 Node.js 中的库是使用非阻塞范例编写的，这使得阻塞行为成为例外而不是常态。
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
--allow-child-process allow use of child process when any permissions are set
--allow-fs-read=... allow permissions to read the filesystem
--allow-fs-write=... allow permissions to write in the filesystem
--allow-worker allow worker threads when any permissions are set
--build-snapshot Generate a snapshot blob when the process exits.
-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-etw-stack-walking provides heap data to ETW Windows native tracing
--enable-fips enable FIPS crypto at startup
--enable-source-maps Source Map V3 support for stack traces
--env-file=... set environment variables from supplied file
-e, --eval=... evaluate script
--experimental-default-type=... set module system to use by default
--experimental-detect-module when ambiguous modules fail to evaluate because they contain ES module syntax, try again to evaluate
them as ES modules
--experimental-import-meta-resolve experimental ES Module import.meta.resolve() parentURL support
--loader, --experimental-loader=... use the specified module as a custom loader
--experimental-network-imports experimental https: support for the ES Module loader
--experimental-permission enable the permission system
--experimental-policy=... use the specified file as a security policy
--experimental-sea-config=... Generate a blob that can be embedded into the single executable application
--experimental-test-coverage enable code coverage in the test runner
--experimental-vm-modules experimental ES Module support in vm module
--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)
--force-node-api-uncaught-exceptions-policy enforces 'uncaughtException' event on Node API asynchronous callbacks
--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)
--import=... ES module to preload (option can be repeated)
--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-fetch experimental Fetch API
--no-experimental-global-customevent expose experimental CustomEvent on the global scope
--no-experimental-global-webcrypto expose experimental Web Crypto API on the global scope
--no-experimental-repl-await experimental await keyword support in REPL
--no-experimental-websocket experimental WebSocket API (currently set)
--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
--enable-network-family-autoselection, --no-network-family-autoselection
Disable network address family autodetection algorithm
--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)
--openssl-legacy-provider enable OpenSSL 3.0 legacy provider
--openssl-shared-config enable OpenSSL shared configuration
--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=... CommonJS 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
--snapshot-blob=... Path to the snapshot blob that's either the result of snapshotbuilding, or the blob that is used to
restore the application state
--test launch test runner on startup
--test-concurrency=... specify test runner concurrency
--test-name-pattern=... run tests whose name matches this regular expression
--test-only run tests with 'only' option set
--test-reporter=... report test output using the given reporter
--test-reporter-destination=... report given reporter to the given destination
--test-shard=... run test at specific shard
--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 (deprecated) 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 (default)
--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
--v8-options print V8 command line options
--v8-pool-size=... set V8's thread pool size
-v, --version print Node.js version
--watch run in watch mode
--watch-path=... path to watch
--watch-preserve-output preserve outputs on watch mode restart
--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_EXTERNAL_MODULE path to a Node.js module which will be loaded in place of the built-in REPL
NODE_REPL_HISTORY path to the persistent REPL history file
NODE_SKIP_PLATFORM_CHECK set to 1 to skip the check for a supported platform during Node.js startup
NODE_TLS_REJECT_UNAUTHORIZED set to 0 to disable TLS certificate validation
NODE_V8_COVERAGE directory to output v8 coverage JSON to
TZ specify the timezone configuration
UV_THREADPOOL_SIZE sets the number of threads used in libuv's threadpool
node 运行 JavaScript 文件：
node path/to/file
node 启动 REPL - 交互式 Shell：
node
node 当导入的文件发生更改时，执行指定的文件并重新启动进程（需要 Node.js 版本 18.11+）：
node --watch path/to/file
node 将 JavaScript 代码作为参数传递来执行：
node -e "code"
node 评估并打印结果，对于打印节点的依赖项版本很有用：
node -p "process.versions"
=====================================================
{
node: '20.10.0',
acorn: '8.10.0',
ada: '2.7.2',
ares: '1.20.1',
base64: '0.5.0',
brotli: '1.0.9',
cjs_module_lexer: '1.2.2',
cldr: '43.1',
icu: '73.2',
llhttp: '8.1.1',
modules: '115',
napi: '9',
nghttp2: '1.57.0',
nghttp3: '0.7.0',
ngtcp2: '0.8.1',
openssl: '3.0.12+quic',
simdutf: '3.2.18',
tz: '2023c',
undici: '5.26.4',
unicode: '15.0',
uv: '1.46.0',
uvwasi: '0.0.19',
v8: '11.3.244.8-node.25',
zlib: '1.2.13.1-motley'
}
node 激活检查器，暂停执行，直到源代码完全解析后连接调试器：
node --no-lazy --inspect-brk path/to/file