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What is tail recursion?
...ple function that adds the first N natural numbers. (e.g. sum(5) = 1 + 2 + 3 + 4 + 5 = 15).
Here is a simple JavaScript implementation that uses recursion:
function recsum(x) {
if (x === 1) {
return x;
} else {
return x + recsum(x - 1);
}
}
If you called recsum(5), th...
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
...点。
1．共享网络
2．加快访问速度，节约通信带宽
3．防止内部主机受到攻击
4．限制用户访问，完善网络管理
原理：
① 客户端A向代理服务器提出访问Internet的请求。
② 代理服务器接受到请求后，首先与访问控制列...
Sticky and NON-Sticky sessions
...(physical) web-server should each request go to. For example, if there are 3 web servers A, B and C behind the load balancer, it is possible that www.mywebsite.com/index.jsp is served from server A, www.mywebsite.com/login.jsp is served from server B and www.mywebsite.com/accoutdetails.php are serve...
Is it possible to implement a Python for range loop without an iterator variable?
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113
Off the top of my head, no.
I think the best you could do is something like this:
def loop(f,n...
Does Ruby regular expression have a not match operator like “!~” in Perl?
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3 Answers
3
Active
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How would you go about parsing Markdown? [closed]
...tten in OCaml, it is extremely simple and short (268 SLOC for the parser, 43 SLOC for the HTML emitter), yet blazingly fast (20% faster than discount (written in hand-optimized C) and sixhundred times faster than BlueCloth (Ruby)), despite the fact that it isn't even optimized for performance yet. B...
Why should I use Hamcrest-Matcher and assertThat() instead of traditional assertXXX()-Methods
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173
There's no big advantage for those cases where an assertFoo exists that exactly matches your int...
Failed to instantiate module [$injector:unpr] Unknown provider: $routeProvider
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3 Answers
3
Active
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xUnit : Assert two List are equal?
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143
xUnit.Net recognizes collections so you just need to do
Assert.Equal(expected, actual); // Orde...
Move all files except one
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143
If you use bash and have the extglob shell option set (which is usually the case):
mv ~/Linux/O...