Index - L
| leftmost | Reflex.Class, Reflex |
| LeftTag | Reflex.Class, Reflex |
| list | Reflex.Collection, Reflex |
| listHoldWithKey | Reflex.Collection, Reflex |
| listsToForest | Reflex.Spider.Internal |
| listViewWithKey | Reflex.Collection, Reflex |
| listWithKey | Reflex.Collection, Reflex |
| listWithKeyShallowDiff | Reflex.Collection, Reflex |
| LocalSpiderTimeline | Reflex.Spider.Internal |
| localSpiderTimeline | Reflex.Spider.Internal |
| lookup | |
| 1 (Function) | Data.AppendMap |
| 2 (Function) | Data.FastMutableIntMap |
| lookupGE | Data.AppendMap |
| lookupGT | Data.AppendMap |
| lookupIndex | Data.AppendMap |
| lookupLE | Data.AppendMap |
| lookupLT | Data.AppendMap |