title: Node.js NAPI how to return uint64 from C++ as return val from Nodejs function
body: <p>This may be dumb: I have a C++ function that returns an unsigned int64; I want to return that value to a NAPI node.js function from index.cpp.</p>
  <p>I gather this value will have to be returned in a BigInt.</p>
  <p>In index.cpp I have a function that is set to return a Napi::BigInt but I can't cast the uint64 to a BigInt and I don't see how to convert it.</p>
  <p>Thanks.
  --Tracy</p>