Node.js process.config Property

The process.config property is an inbuilt application programming interface of the process module which is used to get the JavaScript representation of the configure options that are used to compile the current node.js code.
Syntax: 
 

process.config

Return Value: This property returns an object containing the configuration in JavaScript representation those are used to compile currently executable node.js. 
Below examples illustrate the use of process.config property in Node.js:
Example 1: 
 

Output: 
 

{ 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.data',
 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 
 } 
}

Example 2: 
 

Output: 
 

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

Note: The above program will compile and run by using the node filename.js command.
Reference: https://nodejs.org/api/process.html#process_process_config