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How to exclude a directory in find . command

...since -deletewill first delete the leaves, then the parents of the leaves, etc... But for specifying -prune to make sense, find needs to hit a directory and stop descending it, which clearly makes no sense with -depth or -delete on. Performance I set up a simple test of the three top upvoted ans...
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How to tell if browser/tab is active [duplicate]

...b. It serves no purpose if the user isn't looking at it and is potentially CPU-intensive, so I don't want to just waste cycles in the background. ...
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Difference between string and text in rails?

...humb, use :string for short text input (username, email, password, titles, etc.) and use :text for longer expected input such as descriptions, comment content, etc. share | improve this answer ...
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大单融资后,MOOC去哪儿 - 资讯 - 清泛网 - 专注C/C++及内核技术

...主任蒋健伟表示,“MOOC能有效解决教育资源分配不均的问题,通过校际间的课程互补,提高各所学校的教学能力。” 在MOOC逐渐受到关注的同时,资本也开始发力。2014年12月,果壳网与学堂在线分别获得C轮和A轮融资。据了解,...
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How to populate/instantiate a C# array with a single value?

...ated with the default value of the type (e.g. false for bool, 0 for int, etc.). 25 Answers ...
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乐视全员合伙人制的背后 - 资讯 - 清泛网 - 专注C/C++及内核技术

...论证与模型优化才最终成型。 上述人士称,在解决上述问题的过程中,乐视一直坚持了四个原则,就是希望给予员工“最具‘合伙人’精神的激励计划”、“最慷慨的激励额度”、“最彻底的价值分享”以及“最具生态...
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C++模板的特化 - C/C++ - 清泛网 - 专注C/C++及内核技术

...至于这里怎么都把T2搞没了变成只依赖一个模板参数T了的问题,大家别着急,我来告诉你个本质的东西,把我这么三点就可以了:1.模板参数个数一致;2.只要template <...>里面有东西不是<>,比如typename T,那么特化时就得用到T;3....
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WhatsApp如何成为销售钻戒的店面? - 资讯 - 清泛网 - 专注C/C++及内核技术

...览器(主要针对安卓用户)推出了其应用的桌面版本后,该问题得以解决。 皮瑞安科夫另外有一部手机,专门用于在WhatsApp上与顾客交流,并将其跟三位销售人员的PC相连接。现在,无论他们何时与顾客交流,他们都能让办公室里...
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Why is Go so slow (compared to Java)?

... Generally, real world systems are constrained by IO not by CPU. Therefore, whether Go is 2x or 5x is slower hardly makes as much as a difference to capacity planning as failover, load balancing, caching, database topology and the like. This is why apps at the scale of YouTube can af...
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再说WCF Data Contract KnownTypeAttribute - 更多技术 - 清泛网 - 专注IT技能提升

...列化器去寻找未知对象的映射的途径。在Remoting中这样的问题不会存在,因为Remoting实际上是通过将一个类型传递给双方来进行类型匹配的。 那么KnowTypeAttribute到底用在什么地方呢?上边说了,当前类的未知类型。那什么又是当...