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javascript中的内存管理

[英]Memory management in javascript

原文 2015-01-27 17:10:56 5 1 javascript/ scope

I am trying to develop an application using javascript and to help organise my code, I am coding using objects. 我正在尝试使用javascript开发应用程序并帮助组织我的代码，我正在使用对象进行编码。 However, I don't really understand how the javascript engine is managing my object. 但是，我真的不明白javascript引擎是如何管理我的对象的。

If in a first HTML page1 where I include a js file, I make an object obj1 when I switch to HTML page2 where I include both the old js script (already included in the first html page ) and the second js file where I want to use that object created in the first javascript file, it's undefined . 如果在我包含js文件的第一个HTML page1中，当我切换到HTML page2时我创建了一个对象obj1 ，其中我包括旧的js脚本（已包含在第一个html页面中）和第二个js文件，我想要使用在第一个javascript文件中创建的对象，它是undefined 。

Can anyone help me understand how javascript manages objects and how, going from page to page, to get my object ? 任何人都可以帮助我理解javascript如何管理对象以及如何从一个页面到另一个页面来获取我的对象？

1 个解决方案

When you load a new page (or even reload the current one), everything that was on the page you are leaving is destroyed . 当您加载新页面（甚至重新加载当前页面）时，您要离开的页面上的所有内容都将被销毁。

If you want to make an object persistent, consider using localStorage to save the information you need. 如果要使对象持久化，请考虑使用localStorage来保存所需的信息。