[stareatgoats]

Looks elegant, but am not going to sunset the homebaked library solution yet I don't think, because of the proxy and polyfill overhead, and also because i prefer to freely assign a specific value if nothing:

TS-like syntax for clarity:

  Function Nothing(vTestVar:any,  vIfnull:any, sObjPath?: string, bStrict?: boolean) {... return vResultOfCheck}