// Removes all false and null values from $list
// -------------------------------------------------------------------------------
// @documentation http://sassylists.com/documentation.html#purge
// -------------------------------------------------------------------------------
// @alias `compact()`
// @alias `clean()`
// -------------------------------------------------------------------------------
// @example purge(a null b false c) => a, b, c
// @example purge(a b c '')         => a, b, c
// -------------------------------------------------------------------------------
// @param $list [List] : list
// -------------------------------------------------------------------------------
// @return [List]

@function purge($list) {
    $result: ();

    @each $item in $list {
        @if $item and $item != "" and $value != () {
            $result: append($result, $item);
        }
    }

    @return $result;
}

// Aliases
@function compact($list) {
    @return purge($list);
}

@function clean($list) {
    @return purge($list);
}