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CSS: 100% font size - 100% of what?
...e "rem" instead of "em" to always scale a specific element relative to the root (html element, or browser default). Can be useful with a complex hierarchy of relatively-sized elements.
– Beejor
Aug 5 '16 at 1:16
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What is the difference between a directory and a folder?
...ditor I could found two sub-keys, Folder and Directory, under HKEY_CLASSES_ROOT.
I didn't know the difference until I created some values manually in registry and observed the differences of context menu items. If I create a node under HKEY_CLASSES_ROOT\Folder\shell only, I found that it appears in...
What's the difference between the data structure Tree and Graph?
...recursive pointer-based structure. The representation is not unique for unrooted trees, but that is immaterial.
– j_random_hacker
Jul 7 '14 at 9:42
2
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使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...替换了一颗真正的数据库存储引擎，我们现在可以像使用MySQL数据库一样精确的指定TokuMX最大可用内存，它也完整支持的事务处理。当然了，TokuTek引以为傲的数据压缩能力也是一点也没落下。性能详细对比请参见《TokuMX vs. MongoDB...
Creating a daemon in Linux
...e permissions */
umask(0);
/* Change the working directory to the root directory */
/* or another appropriated directory */
chdir("/");
/* Close all open file descriptors */
int x;
for (x = sysconf(_SC_OPEN_MAX); x>=0; x--)
{
close (x);
}
/* Open...
How do I get the row count of a pandas DataFrame?
... answered Apr 11 '13 at 8:24
rootroot
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Django import error - no module named django.conf.urls.defaults
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Check also if you have set ROOT_URLCONF in your settings.py! This variable has to also be adapted. In my case it was ROOT_URLCONF = 'urls' and had to be changed to ROOT_URLCONF = 'app.urls'
– Lukas Schulze
Mar 10 ...
Cannot get to $rootScope
... // you can inject any provider here
});
// run blocks
app.run(function($rootScope) {
// you can inject any instance here
});
See http://docs.angularjs.org/guide/module for more info.
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How to drop a table if it exists?
...MS servers provide, at least, basic INFORMATION_SCHEMA support, including: MySQL, Postgres, Oracle, IBM DB2, and Microsoft SQL Server 7.0 (and greater).
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Rollback to an old Git commit in a public repo
...nges to the whole tree. You should execute this command in the git project root. If you are in any sub directory, then this command only changes the files in the current directory. Then commit and you should be good.
You can undo this by
git reset --hard
that will delete all modifications from ...