Node.js C++ addons: how to create JS Date object by N-API and V8 in Node.js 10

Question

The napi_create_date function appeared in Node.js starting with 11.11.0 version. https://nodejs.org/api/n-api.html#n_api_napi_create_date Which workarounds are there to create JS Date (from C++ double) on Node.js 10.15.3 using N-API and V8 API only? Or maybe I can get V8 Isolate from N-API? Or how can I combine N-API and NAN to create Date and use it in napi_call_function? I need some way to create a Date value (from C++ double) for napi_call_function call. JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

For now I written such a workaround. It is more correct to use env->context() instead of v8::Isolate::GetCurrent(), but napi_env is defined in src/js_native_api_v8.h, which does not exist in ~/.node-gyp/10.15.3/include/node, so I did not find a fast way to use env->context(). #include // This asserts v8::Local<> will always be implemented with a single // pointer field so that we can pass it around as a void*. static_assert(sizeof(v8::Local) == sizeof(napi_value), "Cannot convert between v8::Local and napi_value"); napi_status napi_create_date_by_v8( double time, napi_value* result ) { v8::Isolate* isolate = v8::Isolate::GetCurrent(); v8::MaybeLocal maybe_date = v8::Date::New(isolate, time); v8::Local local = maybe_date.ToLocalChecked(); *result = reinterpret_cast(*local); return napi_ok; }