Index - B
| BDeque | ClassyPrelude |
| Bifunctor | ClassyPrelude |
| bimap | ClassyPrelude |
| BiPolyMap | ClassyPrelude |
| BlazeBuilder | ClassyPrelude |
| BlockBuffering | ClassyPrelude |
| Bool | ClassyPrelude |
| bool | ClassyPrelude |
| Bounded | ClassyPrelude |
| BPMKeyConstraint | ClassyPrelude, ClassyPrelude |
| bracket | ClassyPrelude |
| bracketOnError | ClassyPrelude |
| bracketOnError_ | ClassyPrelude |
| bracket_ | ClassyPrelude |
| break | ClassyPrelude |
| breakLine | ClassyPrelude |
| breakWord | ClassyPrelude |
| BRef | ClassyPrelude |
| BufferMode | ClassyPrelude |
| Builder | ClassyPrelude |
| builderToLazy | ClassyPrelude |
| ByteString | ClassyPrelude |
| ByteStringBuilder | ClassyPrelude |