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Loading CSS without blocking render

The principles behind these techniques aren't new. Filament group, for example, have published great content on loading CSS and fonts. I've written this article to document my thoughts and ideas for loading non-blocking resources. The trick to trigge…

python---redis缓存页面前戏之剖析render源码

1.初始代码: def get(self, *args, **kwargs): import time tm = time.time() self.render('home/index.html', time=tm) 2.代码追踪render: # 第一次执行get方法时,通过render方法已经生成了数据,具体存在地方,参见源码 def render(self, template_name, **kwargs): """Renders the template with t…

SVN：Previous operation has not finished; run 'cleanup' if it was interrupted

异常处理汇总-开发工具 http://www.cnblogs.com/dunitian/p/4522988.html cleanup failed to process the following paths:xxx Previous operation has not finished; run 'cleanup' if it was interrupted 解决方法有两个,一个是用sqlite清除下数据库wc.db的work_queue,这种网上说的比较多.我说下第二种方法:这个需要svn…

React.render和reactDom.render的区别

刚开始学习react.js.发现网上的资料,有些是写着react.render,有些写着reactDom.render.觉得很奇怪就查阅了一下资料.解释如下: 这个是react最新版api,也就是0.14版本做出的改变.主要是为了使React能在更多的不同环境下更快.更容易构建.于是把react分成了react和react-dom两个部分.这样就为web版的react和移动端的React Native共享组件铺平了道路.也就是说我们可以跨平台使用相同的react组件. 新的react包包含了Re…

【svn】在提交文件是报错：previous operation has not finished;run 'cleanup' if it was interrupted

1.svn在提交文件是报错:previous operation has not finished;run 'cleanup' if it was interrupted2.原因,工作队列被占用,只需在svn项目数据库 .svn文件夹下wc.db的表work_queue 清空即可,[delete from work_queue] 3.项目 clear up 操作,4.成功!…

svn报错cleanup failed–previous operation has not finished; run cleanup if it was interrupted的解决办法

今天在svn提交的时候它卡顿了一下,我以为已经提交完了,就按了一下,结果就再也恢复不了,也继续不了了... 报错 cleanup failed–previous operation has not finished; run cleanup if it was interrupted 试过执行cleanup,结果也是失败,要更新先要cleanup,但是cleanup的失败信息又叫我cleanup……这是一个死循环! 感觉这是一个设计上的缺陷:使用工作队列来保存数据,后一个操作依赖于前一个操作的结…