Append the given element to the right
Append the given element to the right
the finger is Four
.
Prepends the given element to the left
Prepends the given element to the left
the finger is Four
.
Replaces the last element of this finger with a
Apply the given side effect to each element.
An iterator that visits each element.
An iterator that visits each element in reverse order.
Replaces the first element of this finger with a