Programming with fish (custom operator reference)
Functional programming tends to involve custom operators. An excessive number of custom operators makes for cryptic, illegible code, but a few well chosen ones allow logic to be more succint and readable. We have already seen >=>, and happily suave does not use either ><<*> or <*)))>{
The other custom operators it declares are:
Operator |
Description |
|---|---|
|
Left-to-right Kleisli composition of monads, see Http.fsi |
| <|> | Left-to-right Kleisli composition of web parts, see Http.fsi |
? |
Try find a value by key in a dictionary |
%% |
Search a list of key-value pairs and return the value (or None if not found) |
^^ |
Search a list of key-value option pairs and return the value (or None if not found) |
?<- |
Assign a value to the key in the dictionary |