O(1) Extract the first element of a ByteString, which must be non-empty. An exception will be thrown in the case of an empty ByteString.

O(1) Extract the last element of a ByteString, which must be finite and non-empty. An exception will be thrown in the case of an empty ByteString.

O(1) Extract the elements after the head of a ByteString, which must be non-empty. An exception will be thrown in the case of an empty ByteString.

O(1) Return all the elements of a ByteString except the last one. An exception will be thrown in the case of an empty ByteString.

foldl1 is a variant of foldl that has no starting value argument, and thus must be applied to non-empty ByteStrings. An exception will be thrown in the case of an empty ByteString.

'foldl1\'' is like foldl1, but strict in the accumulator. An exception will be thrown in the case of an empty ByteString.

foldr1 is a variant of foldr that has no starting value argument, and thus must be applied to non-empty ByteStrings An exception will be thrown in the case of an empty ByteString.

'foldr1\'' is a variant of foldr1, but is strict in the accumulator.

O(n) maximum returns the maximum value from a ByteString This function will fuse. An exception will be thrown in the case of an empty ByteString.

O(n) minimum returns the minimum value from a ByteString This function will fuse. An exception will be thrown in the case of an empty ByteString.