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Is there documentation for the Rails column types?
...STAMP datatype is stored as a unix timestamp. Its valid range goes from 1970 to 2038, and the time is stored as the number of seconds that have elapsed since the last epoch, which is supposedly standard, but in practice can differ from system to system. Recognizing that relative time was not a good ...
Linux下安装项目管理工具Redmine - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...、RubyGems安装
# wget http://rubyforge.org/frs/download.php/60718/rubygems-1.3.5.tgz
# tar zxvf rubygems-1.3.5.tgz
# cd rubygems-1.3.5
# ruby setup.rb
3、Rake安装
# gem install rake //直接使用gem命令安装rake.
//也可以下载安装地址：http...
count number of lines in terminal output
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answered Sep 17 '12 at 10:32
João SilvaJoão Silva
78.1k2525 gold badges143143 silver badges149149 bronze badges
...
ReadOnlyCollection or IEnumerable for exposing member collections?
... to Skip:
public IEnumerable<Foo> Foos {
get { return foos.Skip(0); }
}
(There are plenty of other options for wrapping trivially - the nice thing about Skip over Select/Where is that there's no delegate to execute pointlessly for each iteration.)
If you're not using .NET 3.5 you can w...
Using System.Dynamic in Roslyn
...
answered Apr 4 '14 at 14:04
AlbertoAlberto
13.2k88 gold badges4040 silver badges4949 bronze badges
...
Error during SSL Handshake with remote server
... |
edited Oct 28 '14 at 20:22
Community♦
111 silver badge
answered Feb 27 '14 at 13:14
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Why does Python code run faster in a function?
...
540
You might ask why it is faster to store local variables than globals. This is a CPython implemen...
How to check a string for specific characters?
...(s):
print('Found')
else
print('Not found')
... or
chars = set('0123456789$,')
if any((c in chars) for c in s):
print('Found')
else:
print('Not Found')
[Edit: added the '$' in s answers]
share
|...
How do I delete/remove a shell function?
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answered Oct 29 '08 at 0:42
Robert GambleRobert Gamble
94.3k2121 gold badges139139 silver badges135135 bronze badges
...
How to check if a file exists in Documents folder?
...rchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
NSString* foofile = [documentsPath stringByAppendingPathComponent:@"foo.html"];
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:foofile];
...