NODE.JS(1)                                                                                                                                                                                NODE.JS(1)

NAME
       node - Server-side JavaScript

SYNOPSIS
       node [ -v ] [ --debug | --debug-brk ] [ --v8-options ]
            [ -e command | script.js ] [ arguments ]

       Execute without arguments to start the REPL.

DESCRIPTION
       Node is a set of libraries for javascript which allows it to be used outside of the browser. It is primarily focused on creating simple, easy to build network clients and servers.

OPTIONS
         -v, --version          print node's version

         -e, --eval script      evaluate script

         -p, --print            print result of --eval

         -i, --interactive      always enter the REPL even if stdin
                                does not appear to be a terminal

         --no-deprecation       silence deprecation warnings

         --trace-deprecation    show stack traces on deprecations

         --throw-deprecation    throw errors on deprecations

         --v8-options           print v8 command line options

         --max-stack-size=val   set max v8 stack size (bytes)

         --enable-ssl2          enable ssl2 in crypto, tls, and https
                                modules

         --enable-ssl3          enable ssl3 in crypto, tls, and https
                                modules

ENVIRONMENT VARIABLES
       NODE_PATH
              ´:´-separated list of directories prefixed to the module search path.

       NODE_MODULE_CONTEXTS
              If set to 1 then modules will load in their own global contexts.

       NODE_DISABLE_COLORS
              If set to 1 then colors will not be used in the REPL.

V8 OPTIONS
         --use_strict (enforce strict mode)
               type: bool  default: false
         --es5_readonly (activate correct semantics for inheriting readonliness)
               type: bool  default: false
         --es52_globals (activate new semantics for global var declarations)
               type: bool  default: false
         --harmony_typeof (enable harmony semantics for typeof)
               type: bool  default: false
         --harmony_scoping (enable harmony block scoping)
               type: bool  default: false
         --harmony_modules (enable harmony modules (implies block scoping))
               type: bool  default: false
         --harmony_proxies (enable harmony proxies)
               type: bool  default: false
         --harmony_collections (enable harmony collections (sets, maps, and weak maps))
               type: bool  default: false
         --harmony (enable all harmony features (except typeof))
               type: bool  default: false
         --packed_arrays (optimizes arrays that have no holes)
               type: bool  default: false
         --smi_only_arrays (tracks arrays with only smi values)
               type: bool  default: true
         --clever_optimizations (Optimize object size, Array shift, DOM strings and string +)
               type: bool  default: true
         --unbox_double_arrays (automatically unbox arrays of doubles)
               type: bool  default: true
         --string_slices (use string slices)
               type: bool  default: true
         --crankshaft (use crankshaft)
               type: bool  default: true
         --hydrogen_filter (optimization filter)
               type: string  default:
         --use_range (use hydrogen range analysis)
               type: bool  default: true
         --eliminate_dead_phis (eliminate dead phis)
               type: bool  default: true
         --use_gvn (use hydrogen global value numbering)
               type: bool  default: true
         --use_canonicalizing (use hydrogen instruction canonicalizing)
               type: bool  default: true
         --use_inlining (use function inlining)
               type: bool  default: true
         --max_inlined_source_size (maximum source size in bytes considered for a single inlining)
               type: int  default: 600
         --max_inlined_nodes (maximum number of AST nodes considered for a single inlining)
               type: int  default: 196
         --max_inlined_nodes_cumulative (maximum cumulative number of AST nodes considered for inlining)
               type: int  default: 196
         --loop_invariant_code_motion (loop invariant code motion)
               type: bool  default: true
         --collect_megamorphic_maps_from_stub_cache (crankshaft harvests type feedback from stub cache)
               type: bool  default: true
         --hydrogen_stats (print statistics for hydrogen)
               type: bool  default: false
         --trace_hydrogen (trace generated hydrogen to file)
               type: bool  default: false
         --trace_phase (trace generated IR for specified phases)
               type: string  default: Z
         --trace_inlining (trace inlining decisions)
               type: bool  default: false
         --trace_alloc (trace register allocator)
               type: bool  default: false
         --trace_all_uses (trace all use positions)
               type: bool  default: false
         --trace_range (trace range analysis)
               type: bool  default: false
         --trace_gvn (trace global value numbering)
               type: bool  default: false
         --trace_representation (trace representation types)
               type: bool  default: false
         --stress_pointer_maps (pointer map for every instruction)
               type: bool  default: false
         --stress_environments (environment for every instruction)
               type: bool  default: false
         --deopt_every_n_times (deoptimize every n times a deopt point is passed)
               type: int  default: 0
         --trap_on_deopt (put a break point before deoptimizing)
               type: bool  default: false
         --deoptimize_uncommon_cases (deoptimize uncommon cases)
               type: bool  default: true
         --polymorphic_inlining (polymorphic inlining)
               type: bool  default: true
         --use_osr (use on-stack replacement)
               type: bool  default: true
         --array_bounds_checks_elimination (perform array bounds checks elimination)
               type: bool  default: false
         --array_index_dehoisting (perform array index dehoisting)
               type: bool  default: false
         --trace_osr (trace on-stack replacement)
               type: bool  default: false
         --stress_runs (number of stress runs)
               type: int  default: 0
         --optimize_closures (optimize closures)
               type: bool  default: true
         --inline_construct (inline constructor calls)
               type: bool  default: true
         --inline_arguments (inline functions with arguments object)
               type: bool  default: true
         --loop_weight (loop weight for representation inference)
               type: int  default: 1
         --optimize_for_in (optimize functions containing for-in loops)
               type: bool  default: true
         --experimental_profiler (enable all profiler experiments)
               type: bool  default: true
         --watch_ic_patching (profiler considers IC stability)
               type: bool  default: false
         --frame_count (number of stack frames inspected by the profiler)
               type: int  default: 1
         --self_optimization (primitive functions trigger their own optimization)
               type: bool  default: false
         --direct_self_opt (call recompile stub directly when self-optimizing)
               type: bool  default: false
         --retry_self_opt (re-try self-optimization if it failed)
               type: bool  default: false
         --count_based_interrupts (trigger profiler ticks based on counting instead of timing)
               type: bool  default: false
         --interrupt_at_exit (insert an interrupt check at function exit)
               type: bool  default: false
         --weighted_back_edges (weight back edges by jump distance for interrupt triggering)
               type: bool  default: false
         --interrupt_budget (execution budget before interrupt is triggered)
               type: int  default: 5900
         --type_info_threshold (percentage of ICs that must have type info to allow optimization)
               type: int  default: 15
         --self_opt_count (call count before self-optimization)
               type: int  default: 130
         --trace_opt_verbose (extra verbose compilation tracing)
               type: bool  default: false
         --debug_code (generate extra code (assertions) for debugging)
               type: bool  default: false
         --code_comments (emit comments in code disassembly)
               type: bool  default: false
         --enable_sse2 (enable use of SSE2 instructions if available)
               type: bool  default: true
         --enable_sse3 (enable use of SSE3 instructions if available)
               type: bool  default: true
         --enable_sse4_1 (enable use of SSE4.1 instructions if available)
               type: bool  default: true
         --enable_cmov (enable use of CMOV instruction if available)
               type: bool  default: true
         --enable_rdtsc (enable use of RDTSC instruction if available)
               type: bool  default: true
         --enable_sahf (enable use of SAHF instruction if available (X64 only))
               type: bool  default: true
         --enable_vfp3 (enable use of VFP3 instructions if available - this implies enabling ARMv7 instructions (ARM only))
               type: bool  default: true
         --enable_armv7 (enable use of ARMv7 instructions if available (ARM only))
               type: bool  default: true
         --enable_fpu (enable use of MIPS FPU instructions if available (MIPS only))
               type: bool  default: true
         --expose_natives_as (expose natives in global object)
               type: string  default: NULL
         --expose_debug_as (expose debug in global object)
               type: string  default: NULL
         --expose_gc (expose gc extension)
               type: bool  default: false
         --expose_externalize_string (expose externalize string extension)
               type: bool  default: false
         --stack_trace_limit (number of stack frames to capture)
               type: int  default: 10
         --builtins_in_stack_traces (show built-in functions in stack traces)
               type: bool  default: false
         --disable_native_files (disable builtin natives files)
               type: bool  default: false
         --inline_new (use fast inline allocation)
               type: bool  default: true
         --stack_trace_on_abort (print a stack trace if an assertion failure occurs)
               type: bool  default: true
         --trace (trace function calls)
               type: bool  default: false
         --mask_constants_with_cookie (use random jit cookie to mask large constants)
               type: bool  default: true
         --lazy (use lazy compilation)
               type: bool  default: true
         --trace_opt (trace lazy optimization)
               type: bool  default: false
         --trace_opt_stats (trace lazy optimization statistics)
               type: bool  default: false
         --opt (use adaptive optimizations)
               type: bool  default: true
         --always_opt (always try to optimize functions)
               type: bool  default: false
         --prepare_always_opt (prepare for turning on always opt)
               type: bool  default: false
         --trace_deopt (trace deoptimization)
               type: bool  default: false
         --min_preparse_length (minimum length for automatic enable preparsing)
               type: int  default: 1024
         --always_full_compiler (try to use the dedicated run-once backend for all code)
               type: bool  default: false
         --trace_bailout (print reasons for falling back to using the classic V8 backend)
               type: bool  default: false
         --compilation_cache (enable compilation cache)
               type: bool  default: true
         --cache_prototype_transitions (cache prototype transitions)
               type: bool  default: true
         --trace_debug_json (trace debugging JSON request/response)
               type: bool  default: false
         --debugger_auto_break (automatically set the debug break flag when debugger commands are in the queue)
               type: bool  default: true
         --enable_liveedit (enable liveedit experimental feature)
               type: bool  default: true
         --break_on_abort (always cause a debug break before aborting)
               type: bool  default: true
         --stack_size (default size of stack region v8 is allowed to use (in kBytes))
               type: int  default: 984
         --max_stack_trace_source_length (maximum length of function source code printed in a stack trace.)
               type: int  default: 300
         --always_inline_smi_code (always inline smi code in non-opt code)
               type: bool  default: false
         --max_new_space_size (max size of the new generation (in kBytes))
               type: int  default: 0
         --max_old_space_size (max size of the old generation (in Mbytes))
               type: int  default: 0
         --max_executable_size (max size of executable memory (in Mbytes))
               type: int  default: 0
         --gc_global (always perform global GCs)
               type: bool  default: false
         --gc_interval (garbage collect after  allocations)
               type: int  default: -1
         --trace_gc (print one trace line following each garbage collection)
               type: bool  default: false
         --trace_gc_nvp (print one detailed trace line in name=value format after each garbage collection)
               type: bool  default: false
         --print_cumulative_gc_stat (print cumulative GC statistics in name=value format on exit)
               type: bool  default: false
         --trace_gc_verbose (print more details following each garbage collection)
               type: bool  default: false
         --trace_fragmentation (report fragmentation for old pointer and data pages)
               type: bool  default: false
         --collect_maps (garbage collect maps from which no objects can be reached)
               type: bool  default: true
         --flush_code (flush code that we expect not to use again before full gc)
               type: bool  default: true
         --incremental_marking (use incremental marking)
               type: bool  default: true
         --incremental_marking_steps (do incremental marking steps)
               type: bool  default: true
         --trace_incremental_marking (trace progress of the incremental marking)
               type: bool  default: false
         --use_idle_notification (Use idle notification to reduce memory footprint.)
               type: bool  default: true
         --send_idle_notification (Send idle notification between stress runs.)
               type: bool  default: false
         --use_ic (use inline caching)
               type: bool  default: true
         --native_code_counters (generate extra code for manipulating stats counters)
               type: bool  default: false
         --always_compact (Perform compaction on every full GC)
               type: bool  default: false
         --lazy_sweeping (Use lazy sweeping for old pointer and data spaces)
               type: bool  default: true
         --never_compact (Never perform compaction on full GC - testing only)
               type: bool  default: false
         --compact_code_space (Compact code space on full non-incremental collections)
               type: bool  default: true
         --cleanup_code_caches_at_gc (Flush inline caches prior to mark compact collection and flush code caches in maps during mark compact cycle.)
               type: bool  default: true
         --random_seed (Default seed for initializing random generator (0, the default, means to use system random).)
               type: int  default: 0
         --use_verbose_printer (allows verbose printing)
               type: bool  default: true
         --allow_natives_syntax (allow natives syntax)
               type: bool  default: false
         --trace_sim (Trace simulator execution)
               type: bool  default: false
         --check_icache (Check icache flushes in ARM and MIPS simulator)
               type: bool  default: false
         --stop_sim_at (Simulator stop after x number of instructions)
               type: int  default: 0
         --sim_stack_alignment (Stack alignment in bytes in simulator (4 or 8, 8 is default))
               type: int  default: 8
         --trace_exception (print stack trace when throwing exceptions)
               type: bool  default: false
         --preallocate_message_memory (preallocate some memory to build stack traces.)
               type: bool  default: false
         --randomize_hashes (randomize hashes to avoid predictable hash collisions (with snapshots this option cannot override the baked-in seed))
               type: bool  default: true
         --hash_seed (Fixed seed to use to hash property keys (0 means random)(with snapshots this option cannot override the baked-in seed))
               type: int  default: 0
         --preemption (activate a 100ms timer that switches between V8 threads)
               type: bool  default: false
         --regexp_optimization (generate optimized regexp code)
               type: bool  default: true
         --testing_bool_flag (testing_bool_flag)
               type: bool  default: true
         --testing_int_flag (testing_int_flag)
               type: int  default: 13
         --testing_float_flag (float-flag)
               type: float  default: 2.500000
         --testing_string_flag (string-flag)
               type: string  default: Hello, world!
         --testing_prng_seed (Seed used for threading test randomness)
               type: int  default: 42
         --testing_serialization_file (file in which to serialize heap)
               type: string  default: /tmp/serdes
         --help (Print usage message, including flags, on console)
               type: bool  default: true
         --dump_counters (Dump counters on exit)
               type: bool  default: false
         --debugger (Enable JavaScript debugger)
               type: bool  default: false
         --remote_debugger (Connect JavaScript debugger to the debugger agent in another process)
               type: bool  default: false
         --debugger_agent (Enable debugger agent)
               type: bool  default: false
         --debugger_port (Port to use for remote debugging)
               type: int  default: 5858
         --map_counters (Map counters to a file)
               type: string  default:
         --js_arguments (Pass all remaining arguments to the script. Alias for "--".)
               type: arguments  default:
         --debug_compile_events (Enable debugger compile events)
               type: bool  default: true
         --debug_script_collected_events (Enable debugger script collected events)
               type: bool  default: true
         --gdbjit (enable GDBJIT interface (disables compacting GC))
               type: bool  default: false
         --gdbjit_full (enable GDBJIT interface for all code objects)
               type: bool  default: false
         --gdbjit_dump (dump elf objects with debug info to disk)
               type: bool  default: false
         --gdbjit_dump_filter (dump only objects containing this substring)
               type: string  default:
         --force_marking_deque_overflows (force overflows of marking deque by reducing its size to 64 words)
               type: bool  default: false
         --stress_compaction (stress the GC compactor to flush out bugs (implies --force_marking_deque_overflows))
               type: bool  default: false
         --log (Minimal logging (no API, code, GC, suspect, or handles samples).)
               type: bool  default: false
         --log_all (Log all events to the log file.)
               type: bool  default: false
         --log_runtime (Activate runtime system %Log call.)
               type: bool  default: false
         --log_api (Log API events to the log file.)
               type: bool  default: false
         --log_code (Log code events to the log file without profiling.)
               type: bool  default: false
         --log_gc (Log heap samples on garbage collection for the hp2ps tool.)
               type: bool  default: false
         --log_handles (Log global handle events.)
               type: bool  default: false
         --log_snapshot_positions (log positions of (de)serialized objects in the snapshot.)
               type: bool  default: false
         --log_suspect (Log suspect operations.)
               type: bool  default: false
         --prof (Log statistical profiling information (implies --log-code).)
               type: bool  default: false
         --prof_auto (Used with --prof, starts profiling automatically)
               type: bool  default: true
         --prof_lazy (Used with --prof, only does sampling and logging when profiler is active (implies --noprof_auto).)
               type: bool  default: false
         --prof_browser_mode (Used with --prof, turns on browser-compatible mode for profiling.)
               type: bool  default: true
         --log_regexp (Log regular expression execution.)
               type: bool  default: false
         --sliding_state_window (Update sliding state window counters.)
               type: bool  default: false
         --logfile (Specify the name of the log file.)
               type: string  default: v8.log
         --ll_prof (Enable low-level linux profiler.)
               type: bool  default: false

RESOURCES AND DOCUMENTATION
       See the website for documentation http://nodejs.org/

       Mailing list: http://groups.google.com/group/nodejs

       IRC: irc.freenode.net #node.js

                                                                                                2010                                                                                      NODE.JS(1)

About Shane
Shane is the creator of Page Speed Analytics tool MachMetrics. You can follow his entrepreneurial activities on his blog SideProjectProfit

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