backbone-baseview.js
function (subViews) {
            subViews = subViews || this.subViews;

            var i = -1;
            var len = subViews.length;
            while (++i < len) {
                subViews[i].remove();
            }
            return this;
        }
function (subViews) {
            subViews = subViews || this.subViews;

            var i = -1;
            var len = subViews.length;
            while (++i < len) {
                subViews[i].remove();
            }
            return this;
        }
function ( subViews ) { subViews = subViews || this . subViews ; var i = - 1 ; var len = subViews . length ; while ( ++ i < len ) { subViews [ i ] . remove ( ) ; } return this ; }
Removes all subView '.el' element from the dom, or if passed a
list of subViews, removes only the elements in those.
@memberOf SubViewManager#
@type {SubViewManager}
@param {Backbone.View[]} subViews
@return {SubViewManager}
Removes all subView . el element from the dom or if passed a list of subViews removes only the elements in those .