File: getFirstLast.R

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r-cran-bbmisc 1.13.1-1
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#' @title Get the first/last element of a list/vector
#'
#' @description
#' Returns the first or last element of a list or vector.
#'
#' @param x [\code{list} | \code{vector}]\cr
#'   The list or vector.
#' @return Selected element. The element name is dropped.
#' @export
getFirst = function(x) {
  assertVector(x, min.len = 1L)
  x[[1L]]
}

#' @rdname getFirst
#' @export
getLast = function(x) {
  assertVector(x, min.len = 1L)
  x[[length(x)]]
}