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What does the question mark operator mean in Ruby?
...mpty(), isDigit(), etc. In Ruby, the same methods would be written empty?, and digit? which is quite a bit nicer IMO.
– Ajedi32
Dec 28 '15 at 17:27
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Linux 进程卡住了怎么办？ - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
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$ cat /proc/`pgrep ls`/stack
[<ffffffff813277c7>] request_wait_answer+0x197/0x280
[<ffffffff81327d07>] __fuse_request_send+0x67/0x90
[<ffffffff81327d57>] fuse_request_send+0x27/0x30
[<ffffffff8132b0ac>] fuse_simple_request+0xcc/0x1a0
[<ffffffff8132c0f0>] fuse_do_getattr+0x120/0x330
[<fffff...
Pure JavaScript Send POST Data Without a Form
Is there a way to send data using the POST method without a form and without refreshing the page using only pure JavaScript (not jQuery $.post() )? Maybe httprequest or something else (just can't find it now)?
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Understanding implicit in Scala
I was making my way through the Scala playframework tutorial and I came across this snippet of code which had me puzzled:
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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
Excel RTD(Excel Real-Time Data)实时刷新数据技术从Excel 2002开始，微软提供了一种叫做Excel RTD（real-time data）的技术，使用该技术可以在Excel中实时查看和更新数据。RTD采用所谓的...从Excel 2002开始，微软提供了一种叫做Excel RTD（real-time d...
How do I find out what version of WordPress is running?
...ed some code to delete this, you should be able to view source on the site and look for this meta tag:
<meta name="generator" content="WordPress 2.7.1" />
That will give you the version.
share
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Set HTML5 doctype with XSLT
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This is the only standar way. But, with MSXSL, there is a non standar way: use empty xsl:output/@doctype-public and xsl:output/@doctype-system.
– user357812
Aug 2 '10 at 15:18
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Jelly Bean DatePickerDialog — is there a way to cancel?
...explanation of the issue. I'm not sure if I should edit the other question and paste this content there, but I'm not comfortable changing someone else's question too much. ---
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...lock()
{
m_.release();
}
};
// A class which uses 'mutex' and 'lock' objects
class foo
{
mutex mutex_; // mutex for locking 'foo' object
public:
void bar()
{
lock scopeLock(mutex_); // lock object.
foobar(); // an operation which may throw an exception
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OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...y基于libev，对libev不了解的参见 这
这篇主要分析OceanBase 0.4的mergeserver使用libeasy作为服务器端的模式，客户端自然就是MySQL客户端。OceanBase仅仅使用了libeasy的IO线程部分，工作线程是使用了我们自己的线程池。
主要说如下几个...