binding.gyp

{
	"targets": [ {
		"target_name": "hello",
		"include_dirs": [
			"<!(node -e \"require('nan')\")"
		],
		"sources": [ "hello.cc" ]
	} ]
}

hello.cc

#include <nan.h>

using namespace v8;

#define SET_IS(target, argument, checker) \
	Nan::Set((returnValue), Nan::New(#checker).ToLocalChecked(), \
		Nan::New((argument)->checker()));


NAN_METHOD(getNumberType) {
	Local<Object> returnValue = Nan::New<Object>();
	SET_IS(returnValue, info[0], IsNumber);
	SET_IS(returnValue, info[0], IsUint32);
	SET_IS(returnValue, info[0], IsInt32);
	info.GetReturnValue().Set(returnValue);
}

NAN_MODULE_INIT(Init) {
	Nan::SetMethod(target, "getNumberType", getNumberType);
}

NODE_MODULE(hello, Init)

index.js

  var hello = require( "bindings" )( "hello" );

function doOneNumber( theNumber ) {
	console.log( theNumber + ": " + JSON.stringify( hello.getNumberType( theNumber ) ) );
}

doOneNumber( -1.2 );
doOneNumber( -1.0 );
doOneNumber( -1 );
doOneNumber( -0.0 );
doOneNumber( -0 );
doOneNumber( 0 );
doOneNumber( +0 );
doOneNumber( +0.0 );
doOneNumber( 0.0 );
doOneNumber( 1.0 );
doOneNumber( +1.0 );
doOneNumber( +1 );
doOneNumber( 1 );
doOneNumber( 1.2 );
doOneNumber( +1.2 );

package.json

{
  "name": "hello",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "dependencies": {
    "bindings": "^1.2.1",
    "nan": "^2.2.0"
  }
}