simple code snippets to help me with nan.h in node.js addons.

nodeNAN_examples.cpp

    // grab array
    v8::Local<v8::Array> jsArray = v8::Local<v8::Array>::Cast(info[0]);
    // array length
    int arraySize = jsArray->Length();
    // grab first array element & converto to proper type
    int indexOne = jsArray->Get(0)->Int32Value();
    // return element
    info.GetReturnValue().Set(indexOne);