head package:vector
First element of the
Bundle or error if empty
First element of the
Bundle or error if empty
O(1) First element of a vector in a monad. See
indexM
for an explanation of why this is useful.
O(1) First element of a vector in a monad. See
indexM
for an explanation of why this is useful.
O(1) First element of a vector in a monad. See
indexM
for an explanation of why this is useful.
O(1) First element of a vector in a monad. See
indexM
for an explanation of why this is useful.
O(1) First element of a vector in a monad. See
indexM
for an explanation of why this is useful.
O(1) First element, without checking if the vector is empty.
O(1) First element in a monad, without checking for empty
vectors. See
indexM for an explanation of why this is useful.
O(1) First element, without checking if the vector is empty.
O(1) First element in a monad, without checking for empty
vectors. See
indexM for an explanation of why this is useful.
O(1) First element, without checking if the vector is empty.
O(1) First element in a monad, without checking for empty
vectors. See
indexM for an explanation of why this is useful.
O(1) First element, without checking if the vector is empty.
O(1) First element in a monad, without checking for empty
vectors. See
indexM for an explanation of why this is useful.
O(1) First element, without checking if the vector is empty.
O(1) First element in a monad, without checking for empty
vectors. See
indexM for an explanation of why this is useful.