@function __first($list, $args...) {
    @return if($list and length($list) > 0, nth($list, 1), null);
}


/// Gets the first element of `$list`.
///
///
/// @access public
/// @group List
/// @param {List} $list The list to query.
/// @returns {*} Returns the first element of `$list`.
/// @example scss
/// $foo: _first((1, 2, 3));
/// // => 1
/// 
/// $foo: _first(());
/// // => null

@function _first($args...) {
    @return call(get-function('__first'), $args...);
}


/// @alias _first

@function _head($args...) {
    @return call(get-function('__first'), $args...);
}