Index - H
| Handle | Exon.Prelude |
| HasCallStack | Exon.Prelude |
| Hashable | Exon.Prelude |
| HashMap | Exon.Prelude |
| hashNub | Exon.Prelude |
| HashSet | Exon.Prelude |
| hashWithSalt | Exon.Prelude |
| head | Exon.Prelude |
| hFlush | Exon.Prelude |
| hGetBuffering | Exon.Prelude |
| hIsEOF | Exon.Prelude |
| hoistEither | Exon.Prelude |
| hoistMaybe | Exon.Prelude |
| hSetBuffering | Exon.Prelude |