flatMap that sh..
flatMap that sh..

RawToast/fpinscala,fpinscala-muc/fpinscala-ankitgit,jstjohn/fpinscala,fpinscala-muc/fpinscala-abo64,fpinscala-muc/fpinscala-skasinsk,fpinscala-muc/fpinscala,fpinscala-muc/fpinscala-mhofsche,fpinscala-muc/fpinscala-narigo