Index - D
| DashPunctuation | Platform.Prelude |
| Data | Platform.Prelude |
| dataCast1 | Platform.Prelude |
| dataCast2 | Platform.Prelude |
| DataRep | Platform.Prelude |
| DataType | Platform.Prelude |
| dataTypeConstrs | Platform.Prelude |
| dataTypeName | Platform.Prelude |
| dataTypeOf | Platform.Prelude |
| dataTypeRep | Platform.Prelude |
| dbname | PostgresqlConnectionString |
| Deadlock | |
| 1 (Type/Class) | Platform.Prelude |
| 2 (Data Constructor) | Platform.Prelude |
| DecimalNumber | Platform.Prelude |
| decodeFloat | Platform.Prelude |
| decT | Platform.Prelude |
| delete | Platform.Prelude |
| deleteBy | Platform.Prelude |
| deleteFirstsBy | Platform.Prelude |
| Denormal | Platform.Prelude |
| diff | Platform.Prelude |
| digitToInt | Platform.Prelude |
| displayException | Platform.Prelude |
| div | Platform.Prelude |
| DivideByZero | Platform.Prelude |
| divMod | Platform.Prelude |
| Double | Platform.Prelude |
| Down | |
| 1 (Type/Class) | Platform.Prelude |
| 2 (Data Constructor) | Platform.Prelude |
| drop | Platform.Prelude |
| dropWhile | Platform.Prelude |
| dropWhileEnd | Platform.Prelude |
| Dual | |
| 1 (Type/Class) | Platform.Prelude |
| 2 (Data Constructor) | Platform.Prelude |