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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
....42
// Delay 2 seconds
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(2.0 * Double(NSEC_PER_SEC))), dispatch_get_main_queue()) { () -> Void in
println("Sum of times: \(time1 + time2)")
}
Objective C
CGFloat time1 = 3.49;
CGFloat time2 = 8.13;
// Delay 2 seconds
dispatch_after(...
Convert base-2 binary number string to int
I'd simply like to convert a base-2 binary number string into an int, something like this:
8 Answers
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File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希 ·...
... File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希
File Hash 扩展
下载链接
功能概述
扩展特性
截图
函数
...
Integrating MySQL with Python in Windows
...
Download page for python-mysqldb. The page includes binaries for 32 and 64 bit versions of for Python 2.5, 2.6 and 2.7.
There's also discussion on getting rid of the deprecation warning.
UPDATE: This is an old answer. Currently, I would recommend using PyMySQL. It's pure python, so it supports...
Where is git.exe located?
...ion of "git-for-windows", like:
PortableGit-2.4.4.2-3rd-release-candidate-64-bit.7z.exe
Then add to %PATH%:
c:\path\to\PortableGit-2.4.4.2-3rd-release-candidate-64-bit\cmd
c:\path\to\PortableGit-2.4.4.2-3rd-release-candidate-64-bit\usr\bin
You will not only get git.exe, but also 200+ executabl...
RESTful Authentication via Spring
Problem:
We have a Spring MVC-based RESTful API which contains sensitive information. The API should be secured, however sending the user's credentials (user/pass combo) with each request is not desirable. Per REST guidelines (and internal business requirements), the server must remain stateless. ...
How to set tbody height with overflow scroll
... turn tr into table.
to spray evenly the cells , use table-layout:fixed;
DEMO
CSS for your HTML test :
table ,tr td{
border:1px solid red
}
tbody {
display:block;
height:50px;
overflow:auto;
}
thead, tbody tr {
display:table;
width:100%;
table-layout:fixed;/* even...
Location of my.cnf file on macOS
...you start the server using the mysqld_safe program, mysqld_safe sets it to BASEDIR, the MySQL base installation directory.
file specified with --defaults-extra-file=path if any
~/.my.cnf - User-specific
~/.mylogin.cnf - User-specific (clients only)
Source: Using Option Files.
Note: On Unix pl...
'float' vs. 'double' precision
...(These are all diadic rationals with numerator fitting in the mantissa and base-2 logarithm of the denominator fitting in the exponent.)
– R.. GitHub STOP HELPING ICE
Feb 24 '11 at 1:12
...
Using AES encryption in C#
... cipher.Clear();
}
return Convert.ToBase64String(encrypted);
}
public static string Decrypt(string value, string password) {
return Decrypt<AesManaged>(value, password);
}
public static string Decrypt<T>(stri...