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Diff output from two programs without temporary files
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Tuning nginx worker_process to obtain 100k hits per min
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that formula does not work if keepalive is set to 0s (disabled)
– Tilo
Mar 21 '13 at 5:12
5
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Show which git tag you are on?
I'm having trouble finding out which tag is currently checked out.
6 Answers
6
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What does 'foo' really mean?
...er. An artillery officer who remained with infantry and tank battalions to set up observation posts in the front lines from which to observe enemy positions and radio the coordinates of targets to the guns further in the rear.
members.fortunecity.com/lniven/definition.htm
is the first metasyntactic ...
How can I refresh a page with jQuery?
...oad();
});
The reload() function takes an optional parameter that can be set to true to force a reload from the server rather than the cache. The parameter defaults to false, so by default the page may reload from the browser's cache.
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Best way to convert list to comma separated string in java [duplicate]
I have Set<String> result & would like to convert it to comma separated string. My approach would be as shown below, but looking for other opinion as well.
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Comparing two dataframes and getting the differences
...ataframes:
>>> df = pd.concat([df1, df2])
>>> df = df.reset_index(drop=True)
group by
>>> df_gpby = df.groupby(list(df.columns))
get index of unique records
>>> idx = [x[0] for x in df_gpby.groups.values() if len(x) == 1]
filter
>>> df.reindex(...
Smarty中date_format日期格式化详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...SmartyInit();
//设置默认时区为上海
date_default_timezone_set('Asia/Shanghai');
//输出echo strtotime('now')，结果如：1245763672
//可知strtotime('now')返回的是时间戳
//也可是从数据库得到的时间戳
$time = time();
echo 'php格式化输出:<br ...
Is there a Mutex in Java?
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Mistake in original post is acquire() call set inside the try loop.
Here is a correct approach to use "binary" semaphore (Mutex):
semaphore.acquire();
try {
//do stuff
} catch (Exception e) {
//exception stuff
} finally {
semaphore.release();
}
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max value of integer
In C, the integer (for 32 bit machine) is 32 bits, and it ranges from -32,768 to +32,767.
In Java, the integer(long) is also 32 bits, but ranges from -2,147,483,648 to +2,147,483,647.
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