| HasCurrentHeight | Reflex.Spider.Internal |
| HasSpiderTimeline | Reflex.Spider.Internal |
| HCons | Reflex.Dynamic, Reflex |
| headE | |
| 1 (Function) | Reflex.Class, Reflex |
| 2 (Function) | Reflex.Spider.Internal |
| headTailE | Reflex.Class, Reflex |
| Height | |
| 1 (Type/Class) | Reflex.Spider.Internal |
| 2 (Data Constructor) | Reflex.Spider.Internal |
| HeightBag | |
| 1 (Type/Class) | Reflex.Spider.Internal |
| 2 (Data Constructor) | Reflex.Spider.Internal |
| heightBagAdd | Reflex.Spider.Internal |
| heightBagEmpty | Reflex.Spider.Internal |
| heightBagFromList | Reflex.Spider.Internal |
| heightBagMax | Reflex.Spider.Internal |
| heightBagRemove | Reflex.Spider.Internal |
| heightBagRemoveMaybe | Reflex.Spider.Internal |
| heightBagSize | Reflex.Spider.Internal |
| heightBagVerify | Reflex.Spider.Internal |
| HHeadPtr | Reflex.Dynamic, Reflex |
| HList | Reflex.Dynamic, Reflex |
| HListElems | Reflex.Dynamic, Reflex |
| HListPtr | Reflex.Dynamic, Reflex |
| HNil | Reflex.Dynamic, Reflex |
| Hold | |
| 1 (Type/Class) | Reflex.Spider.Internal |
| 2 (Data Constructor) | Reflex.Spider.Internal |
| hold | |
| 1 (Function) | Reflex.Class, Reflex |
| 2 (Function) | Reflex.Spider.Internal |
| HoldDyn | Reflex.Spider.Internal |
| holdDyn | Reflex.Class, Reflex.Dynamic, Reflex |
| holdDynSpiderEventM | Reflex.Spider.Internal |
| holdEvent | Reflex.Spider.Internal |
| holdIncremental | Reflex.Class, Reflex |
| holdIncrementalSpiderEventM | Reflex.Spider.Internal |
| holdInvalidators | Reflex.Spider.Internal |
| holdParent | Reflex.Spider.Internal |
| holdSpiderEventM | Reflex.Spider.Internal |
| holdUniqDyn | Reflex.Dynamic, Reflex |
| holdUniqDynBy | Reflex.Dynamic, Reflex |
| holdValue | Reflex.Spider.Internal |
| HostFrame | Reflex.Host.Class |
| hostPerformEventT | Reflex.PerformEvent.Base, Reflex |
| HTailPtr | Reflex.Dynamic, Reflex |