Index - D
| D# | Protolude.Base, Protolude |
| D1 | Protolude |
| Datatype | Protolude |
| datatypeName | Protolude |
| Deadlock | |
| 1 (Data Constructor) | Protolude |
| 2 (Type/Class) | Protolude |
| decodeFloat | Protolude.Base, Protolude |
| decodeUtf8 | Protolude |
| decodeUtf8' | Protolude |
| decodeUtf8With | Protolude |
| deepseq | Protolude |
| denominator | Protolude.Base, Protolude |
| Denormal | Protolude |
| die | Protolude |
| diff | Protolude |
| digitToInt | Protolude |
| displayException | Protolude |
| div | Protolude.Base, Protolude |
| DivideByZero | Protolude |
| divMod | Protolude.Base, Protolude |
| divZeroError | Protolude.Base, Protolude |
| Double | Protolude.Base, Protolude |
| Down | |
| 1 (Data Constructor) | Protolude |
| 2 (Type/Class) | Protolude |
| drop | Protolude |
| dropWhile | Protolude |
| Dual | |
| 1 (Data Constructor) | Protolude |
| 2 (Type/Class) | Protolude |
| dupChan | Protolude |