我试图弄清楚如何准确地获取哪个变量引用了分离的 DOM 树中的某些内容。我已将问题隔离为两个简单的视图，我正在尝试使用 Chrome 开发工具（在比较视图中）找出引用分离节点的内容。我附上了开发工具的图片...
el开发工具的底部显示HomeView已经创建了一个分离的 div。但我不确定从那里去哪里。
我已经阅读了一堆关于精确定位内存泄漏的堆栈溢出文章和博客文章，但我仍然无法弄清楚这一点。我知道Backbone特别容易导致内存泄漏，所以我实现了“僵尸杀”技术，但是内存泄漏仍然存在。以下是我的看法：
帮助视图
// Generated by CoffeeScript 1.6.3
(function() {
var __hasProp = {}.hasOwnProperty,
__extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
define(['jquery', 'jquerymobile', 'underscore', 'backbone'], function($, Mobile, _, Backbone) {
var HelpView, _ref;
return HelpView = (function(_super) {
__extends(HelpView, _super);
function HelpView() {
_ref = HelpView.__super__.constructor.apply(this, arguments);
return _ref;
}
HelpView.prototype.initialize = function() {
return _.bindAll(this, "render", "jqdisplay", "close");
};
HelpView.prototype.render = function() {
$(this.el).html("Help View");
return this;
};
HelpView.prototype.jqdisplay = function() {};
HelpView.prototype.close = function() {
console.log('THIS', this);
console.log($(this.el)[0].parentNode);
$(this.el)[0].parentNode.removeChild($(this.el)[0]);
this.undelegateEvents();
$(this.el).removeData().unbind();
this.remove();
this.unbind();
Backbone.View.prototype.remove.call(this);
return delete this;
};
return HelpView;
})(Backbone.View);
});
}).call(this);
主页视图
// Generated by CoffeeScript 1.6.3
(function() {
var __hasProp = {}.hasOwnProperty,
__extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
define(['jquery', 'jquerymobile', 'underscore', 'backbone'], function($, Mobile, _, Backbone) {
var HomeView, _ref;
return HomeView = (function(_super) {
__extends(HomeView, _super);
function HomeView() {
_ref = HomeView.__super__.constructor.apply(this, arguments);
return _ref;
}
HomeView.prototype.initialize = function() {
return _.bindAll(this, "render", "jqdisplay", "close");
};
HomeView.prototype.render = function() {
$(this.el).html("Home View");
return this;
};
HomeView.prototype.jqdisplay = function() {};
HomeView.prototype.close = function() {
console.log('THIS', this);
console.log($(this.el)[0].parentNode);
$(this.el)[0].parentNode.removeChild($(this.el)[0]);
this.undelegateEvents();
$(this.el).removeData().unbind();
this.remove();
this.unbind();
Backbone.View.prototype.remove.call(this);
return delete this;
};
return HomeView;
})(Backbone.View);
});
}).call(this);
...然后我在路由器中的一个方法中调用每个视图的“关闭”方法...
MyRouter.prototype.showView = function(view) {
console.log('THIS', this);
console.log("next view", view);
console.log(this.currentView);
if (this.currentView) {
console.log('closing the current view...', this.currentView);
console.log('starting', $('[data-role="content"]').html());
this.currentView.close();
delete this.currentView;
console.log('remaining', $('[data-role="content"]').html());
console.log('should be empty', this.currentView);
}
this.currentView = view;
this.currentView.render();
$('[data-role="content"]').html(this.currentView.el);
if (this.currentView.jqdisplay) {
return this.currentView.jqdisplay();
}
};
泄漏的现场演示在这里：http ://bit.ly/15xPrW7 。泄漏触发行为是使用菜单在两个页面之间导航。
任何帮助，将不胜感激！谢谢！