public Task <char> Demo_WithUnitAndBind()
{
string sentence = "Hello world!";
Task <char> charToFind = AsyncMonad.Unit('H');
Task <char> divided = charToFind
.Bind(chr => GetIndexOfCharacterAsync(sentence, chr))
.Bind(index => GetCharacterAtIndexAsync(sentence, index));
return(divided);
}
public Task <char> Demo_Linq()
{
string sentence = "Hello world!";
Task <char> charToFind = AsyncMonad.Unit('H');
Task <char> result =
from chr in charToFind
from index in GetIndexOfCharacterAsync(sentence, chr)
from nextChar in GetCharacterAtIndexAsync(sentence, index)
select nextChar;
/* similar to 'do notation' Haskell...
* do chr <- charToFind
* index <- GetIndexOfCharacter sentence chr
* nextChar <- GetCharacterAtIndex sentence index
* return nextChar
*/
return(result);
}