foldl package:text

foldl :: (a -> Char -> a) -> a -> Text -> a
text Data.Text Data.Text.Lazy
O(n) foldl, applied to a binary operator, a starting value (typically the left-identity of the operator), and a Text, reduces the Text using the binary operator, from left to right.
foldl :: (b -> Char -> b) -> b -> Stream Char -> b
text Data.Text.Internal.Fusion.Common
foldl, applied to a binary operator, a starting value (typically the left-identity of the operator), and a Stream, reduces the Stream using the binary operator, from left to right. Properties 
foldl f z0 . stream = foldl f z0
foldl' :: (a -> Char -> a) -> a -> Text -> a
text Data.Text Data.Text.Lazy
O(n) A strict version of foldl.
foldl1 :: HasCallStack => (Char -> Char -> Char) -> Text -> Char
text Data.Text Data.Text.Lazy
O(n) A variant of foldl that has no starting value argument, and thus must be applied to a non-empty Text.
foldl1' :: HasCallStack => (Char -> Char -> Char) -> Text -> Char
text Data.Text Data.Text.Lazy
O(n) A strict version of foldl1.
foldlM' :: Monad m => (a -> Char -> m a) -> a -> Text -> m a
text Data.Text Data.Text.Lazy
O(n) A monadic version of foldl'.
foldl' :: (b -> Char -> b) -> b -> Stream Char -> b
text Data.Text.Internal.Fusion.Common
A strict version of foldl. Properties 
foldl' f z0 . stream = foldl' f z0
foldl1 :: HasCallStack => (Char -> Char -> Char) -> Stream Char -> Char
text Data.Text.Internal.Fusion.Common
foldl1 is a variant of foldl that has no starting value argument, and thus must be applied to non-empty Streams. Properties 
foldl1 f . stream = foldl1 f
foldl1' :: HasCallStack => (Char -> Char -> Char) -> Stream Char -> Char
text Data.Text.Internal.Fusion.Common
A strict version of foldl1. Properties 
foldl1' f . stream = foldl1' f
foldlM' :: Monad m => (b -> Char -> m b) -> b -> Stream Char -> m b
text Data.Text.Internal.Fusion.Common
A monadic version of foldl. Properties 
foldlM' f z0 . stream = foldlM' f z0
foldlChunks :: (a -> Text -> a) -> a -> Text -> a
text Data.Text.Internal.Lazy Data.Text.Lazy
Consume the chunks of a lazy Text with a strict, tail-recursive, accumulating left fold.