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Can't operator == be applied to generic types in C#?

...perator ==(Test a, Test b) { Console.WriteLine("Overloaded == called"); return a.Equals(b); } public static bool operator !=(Test a, Test b) { Console.WriteLine("Overloaded != called"); return a.Equals(b); } } } Output Inline: Overloaded == c...
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How to install packages offline?

... download a python package and it's dependencies from pypi for offline installation on another machine? Is there any easy way to do this with pip or easy_install? I'm trying to install the requests library on a FreeBSD box that is not connected to the internet. ...
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What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association

...ms to be the owner of the orders. But in the SQL world, one item will actually contain a pointer to the other. Since there is 1 customer for N orders, each order contains a foreign key to the customer it belongs to. This is the "connection" and this means the order "owns" (or literally contains) th...
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Random number generator only generating one random number

..., max); } } Edit (see comments): why do we need a lock here? Basically, Next is going to change the internal state of the Random instance. If we do that at the same time from multiple threads, you could argue "we've just made the outcome even more random", but what we are actually doing is ...
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How to remove .htaccess password protection from a subdirectory

... include the Satisfy any directive in it like so, for up to Apache 2.3: # allows any user to see this directory Satisfy Any The syntax changed in Apache 2.4, this has the same effect: Require all granted share ...
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In Docker, what's the difference between a container and an image? [duplicate]

... running (or stopped) instances of some image. Start with the base image called 'ubuntu'. Let's run bash interactively within the ubuntu image and create a file. We'll use the -i and -t flags to give us an interactive bash shell. $ docker run -i -t ubuntu /bin/bash root@48cff2e9be75:/# ls bin bo...
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Using ECMAScript 6

... In Chrome, most of the ES6 features are hidden behind a flag called "Experimental JavaScript features". Visit chrome://flags/#enable-javascript-harmony, enable this flag, restart Chrome and you will get many new features. Arrow functions are not yet implemented in V8/Chrome, so this fl...
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Flattening a shallow list in Python [duplicate]

...st of iterables with a list comprehension, or failing that, what would you all consider to be the best way to flatten a shallow list like this, balancing performance and readability? ...
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linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...e.log visible_hostname 192.168.16.1 cache_mgr lindenstar@163.com acl all src 0.0.0.0/0.0.0.0 http_access allow all 2.2 acl选项的格式如下: acl列表名称 列表类型 [-i] 列表值 列表名称:用于区分Squid的各个访问控制列表,任何两个访问控制列表不...
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How best to determine if an argument is not sent to the JavaScript function

...noid (see comments). Using the || operator has become standard practice - all the cool kids do it - but be careful: The default value will be triggered if the argument evaluates to false, which means it might actually be undefined, null, false, 0, '' (or anything else for which Boolean(...) returns...