node.js process.config用法及代码示例

process.config属性是流程模块的内置应用程序编程接口，用于获取配置选项的JavaScript表示形式，这些选项用于编译当前的node.js代码。

用法:

process.config

返回值：此属性返回一个对象，该对象包含JavaScript表示形式的配置，这些配置用于编译当前可执行的node.js。

以下示例说明了Node.js中process.config属性的使用：

范例1：

// Node.js program to demonstrate the 
// process.config Property 
   
// Include process module 
const process = require('process'); 
  
// Printing process.config property value 
console.log(process.config);

输出：

{ target_defaults:
   { cflags:[],
     default_configuration:'Release',
     defines:[],
     include_dirs:[],
     libraries:[] 
   },
  variables:
   { asan:0,
     build_v8_with_gn:false,
     coverage:false,
     debug_nghttp2:false,
     enable_lto:false,
     enable_pgo_generate:false,
     enable_pgo_use:false,
     force_dynamic_crt:0,
     host_arch:'x64',
     icu_data_in:'..\\..\\deps/icu-small\\source/data/in\\icudt64l.dat',
     icu_endianness:'l',
     icu_gyp_path:'tools/icu/icu-generic.gyp',
     icu_locales:'en, root',
     icu_path:'deps/icu-small',
     icu_small:true,
     icu_ver_major:'64',
     nasm_version:'2.14',
     node_byteorder:'little',
     node_debug_lib:false,
     node_enable_d8:false,
     node_enable_v8_vtunejit:false,
     node_install_npm:true,
     node_module_version:64,
     node_no_browser_globals:false,
     node_prefix:'/usr/local',
     node_release_urlbase:'https://nodejs.org/download/release/',
     node_shared:false,
     node_shared_cares:false,
     node_shared_http_parser:false,
     node_shared_libuv:false,
     node_shared_nghttp2:false,
     node_shared_openssl:false,
     node_shared_zlib:false,
     node_tag:'',
     node_target_type:'executable',
     node_use_bundled_v8:true,
     node_use_dtrace:false,
     node_use_etw:true,
     node_use_large_pages:false,
     node_use_openssl:true,
     node_use_pch:false,
     node_use_perfctr:true,
     node_use_v8_platform:true,
     node_with_ltcg:true,
     node_without_node_options:false,
     openssl_fips:'',
     openssl_no_asm:0,
     shlib_suffix:'so.64',
     target_arch:'x64',
     v8_enable_gdbjit:0,
     v8_enable_i18n_support:1,
     v8_enable_inspector:1,
     v8_no_strict_aliasing:1,
     v8_optimized_debug:0,
     v8_promise_internal_field_count:1,
     v8_random_seed:0,
     v8_trace_maps:0,
     v8_typed_array_max_size_in_heap:0,
     v8_use_snapshot:true,
     want_separate_host_toolset:0 
   } 
}

范例2：

// Node.js program to demonstrate the 
// process.config Property 
   
// Include process module 
const process = require('process'); 
  
// Printing process.config property value 
var no_conf = 0; 
var conf = process.config; 
for (var key in conf) { 
    console.log(key); 
    var sub_conf = conf[key]; 
     
    for (var attr in sub_conf){ 
        console.log("\t" + attr + "=>" + sub_conf[attr]); 
        no_conf++; 
    } 
} 
  
console.log("total no of configuration available is "
                    + no_conf);

输出：

target_defaults
        cflags=>
        default_configuration=>Release
        defines=>
        include_dirs=>
        libraries=>
variables
        asan=>0
        build_v8_with_gn=>false
        coverage=>false
        debug_nghttp2=>false
        enable_lto=>false
        enable_pgo_generate=>false
        enable_pgo_use=>false
        force_dynamic_crt=>0
        host_arch=>x64
        icu_data_in=>..\..\deps/icu-small\source/data/in\icudt64l.dat
        icu_endianness=>l
        icu_gyp_path=>tools/icu/icu-generic.gyp
        icu_locales=>en, root
        icu_path=>deps/icu-small
        icu_small=>true
        icu_ver_major=>64
        nasm_version=>2.14
        node_byteorder=>little
        node_debug_lib=>false
        node_enable_d8=>false
        node_enable_v8_vtunejit=>false
        node_install_npm=>true
        node_module_version=>64
        node_no_browser_globals=>false
        node_prefix=>/usr/local
        node_release_urlbase=>https://nodejs.org/download/release/
        node_shared=>false
        node_shared_cares=>false
        node_shared_http_parser=>false
        node_shared_libuv=>false
        node_shared_nghttp2=>false
        node_shared_openssl=>false
        node_shared_zlib=>false
        node_tag=>
        node_target_type=>executable
        node_use_bundled_v8=>true
        node_use_dtrace=>false
        node_use_etw=>true
        node_use_large_pages=>false
        node_use_openssl=>true
        node_use_pch=>false
        node_use_perfctr=>true
        node_use_v8_platform=>true
        node_with_ltcg=>true
        node_without_node_options=>false
        openssl_fips=>
        openssl_no_asm=>0
        shlib_suffix=>so.64
        target_arch=>x64
        v8_enable_gdbjit=>0
        v8_enable_i18n_support=>1
        v8_enable_inspector=>1
        v8_no_strict_aliasing=>1
        v8_optimized_debug=>0
        v8_promise_internal_field_count=>1
        v8_random_seed=>0
        v8_trace_maps=>0
        v8_typed_array_max_size_in_heap=>0
        v8_use_snapshot=>true
        want_separate_host_toolset=>0
total no of configuration available is 65

注意：上面的程序将通过使用node filename.js命令。

参考： https://nodejs.org/api/process.html#process_process_config