function markOnly(predicate) {
            return function (rule) {
                var sel = rule.selectors;
                if (predicate(rule) === false) {
                    rule.$$remove = true;
                }
                rule.$$markedSelectors = rule.selectors;
                if (rule._other) {
                    rule._other.$$markedSelectors = rule._other.selectors;
                }
                rule.selectors = sel;
            };
        }
/**
         * Converts a walkStyleRules() iterator to mark nodes with `.$$remove=true` instead of actually removing them.
         * This means they can be removed in a second pass, allowing the first pass to be nondestructive (eg: to preserve mirrored sheets).
         * @private
         * @param {Function} iterator   Invoked on each node in the tree. Return `false` to remove that node.
         * @returns {(rule) => void} nonDestructiveIterator
         */
Converts a walkStyleRules() iterator to mark nodes with `.$$remove=true` instead of actually removing them.
This means they can be removed in a second pass, allowing the first pass to be nondestructive .
@private
@param {Function} iterator   Invoked on each node in the tree. Return `false` to remove that node.
@returns {(rule) => void} nonDestructiveIterator
Converts a walkStyleRules () iterator to mark nodes with ` . $$remove = true ` instead of actually removing them . This means they can be removed in a second pass allowing the first pass to be nondestructive . @private @param { Function } iterator Invoked on each node in the tree . Return ` false ` to remove that node . @returns { ( rule ) = > void } nonDestructiveIterator
function markOnly(predicate) {
            return function (rule) {
                var sel = rule.selectors;
                if (predicate(rule) === false) {
                    rule.$$remove = true;
                }
                rule.$$markedSelectors = rule.selectors;
                if (rule._other) {
                    rule._other.$$markedSelectors = rule._other.selectors;
                }
                rule.selectors = sel;
            };
        }
function markOnly ( predicate ) { return function ( rule ) { var sel = rule . selectors ; if ( predicate ( rule ) === false ) { rule . $$remove = true ; } rule . $$markedSelectors = rule . selectors ; if ( rule . _other ) { rule . _other . $$markedSelectors = rule . _other . selectors ; } rule . selectors = sel ; } ; }
Converts a walkStyleRules() iterator to mark nodes with `.$$remove=true` instead of actually removing them.
Converts a walkStyleRules () iterator to mark nodes with ` . $$remove = true ` instead of actually removing them .