function(items) {
        var me = this, 
            i;

        if (items || me.hasListeners.remove) {
            // Only perform expensive item-by-item removal if there's a listener or specific items
            if (items) {
                for (i = items.length - 1; i >= 0; --i) {
                    me.remove(items[i]);
                }
            } else {
                while (me.length) {
                    me.removeAt(0);
                }
            }
        } else {
            me.length = me.items.length = me.keys.length = 0;
            me.map = {};
            me.indexMap = {};
            me.generation++;
            me.indexGeneration = me.generation;
        }
    }
function(items) {
        var me = this, 
            i;

        if (items || me.hasListeners.remove) {
            
            if (items) {
                for (i = items.length - 1; i >= 0; --i) {
                    me.remove(items[i]);
                }
            } else {
                while (me.length) {
                    me.removeAt(0);
                }
            }
        } else {
            me.length = me.items.length = me.keys.length = 0;
            me.map = {};
            me.indexMap = {};
            me.generation++;
            me.indexGeneration = me.generation;
        }
    }
function ( items ) { var me = this , i ; if ( items || me . hasListeners . remove ) { // Only perform expensive item-by-item removal if there's a listener or specific items if ( items ) { for ( i = items . length - 1 ; i >= 0 ; -- i ) { me . remove ( items [ i ] ) ; } } else { while ( me . length ) { me . removeAt ( 0 ) ; } } } else { me . length = me . items . length = me . keys . length = 0 ; me . map = { } ; me . indexMap = { } ; me . generation ++ ; me . indexGeneration = me . generation ; } }
Remove all items in the collection. Can also be used
to remove only the items in the passed array.
@param {Array} [items] An array of items to be removed.
@return {Ext.util.MixedCollection} this object
Remove all items in the collection . Can also be used to remove only the items in the passed array .