Index - E
| Either | Butler.Prelude, Butler | 
| either | Butler.Prelude, Butler | 
| elems | Butler.Core.NatMap | 
| elemsIndex | Butler.Core.NatMap | 
| embed_ | Butler.Prelude, Butler | 
| empty | Butler.Prelude, Butler | 
| emptyCallStack | Butler.Prelude, Butler | 
| EmptyWithNoAlternative | Butler.Prelude, Butler | 
| em_ | Butler.Prelude, Butler | 
| EnclosingMark | Butler.Prelude, Butler | 
| encode | Butler.Prelude, Butler | 
| EncodeError | Butler.Prelude, Butler | 
| encodeJSON | Butler.Prelude, Butler | 
| encodeList | Butler.Prelude, Butler | 
| encodeMessage | Butler.Frame | 
| encodeMessageL | Butler.Frame | 
| encodeUtf16BE | Butler.Prelude, Butler | 
| encodeUtf16LE | Butler.Prelude, Butler | 
| encodeUtf32BE | Butler.Prelude, Butler | 
| encodeUtf32LE | Butler.Prelude, Butler | 
| encodeUtf8 | Butler.Prelude, Butler | 
| encodeUtf8Builder | Butler.Prelude, Butler | 
| encodeUtf8BuilderEscaped | Butler.Prelude, Butler | 
| encodeVal | Butler.Display.GUI, Butler | 
| enctype_ | Butler.Prelude, Butler | 
| Endo | |
| 1 (Data Constructor) | Butler.Prelude, Butler | 
| 2 (Type/Class) | Butler.Prelude, Butler | 
| Endpoint | |
| 1 (Type/Class) | Butler.Display.Client, Butler.Display, Butler | 
| 2 (Data Constructor) | Butler.Display.Client, Butler.Display, Butler | 
| Entry | Butler.Core.File, Butler | 
| Error | Butler.Prelude, Butler | 
| errorWithStackTrace | Butler.Prelude, Butler | 
| evalHtmlT | Butler.Prelude, Butler | 
| evaluate | Butler.Prelude, Butler | 
| evaluateDeep | Butler.Prelude, Butler | 
| Event | |
| 1 (Type/Class) | Butler.Core.Logger | 
| 2 (Data Constructor) | Butler.Core.Logger | 
| EventDebug | Butler.Core.Logger | 
| EventError | Butler.Core.Logger | 
| eventFromMessage | Butler.App | 
| EventInfo | Butler.Core.Logger | 
| EventSeverity | Butler.Core.Logger | 
| Exception | Butler.Prelude, Butler | 
| execHtmlT | Butler.Prelude, Butler | 
| Exited | Butler.Core.Process, Butler.Core.Processor | 
| ExitReason | Butler.Core.Process, Butler.Core.Processor |