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Make HTML5 video poster be same size as video itself
...reloading but without requiring a separate transparent image. We use a base64 encoded 1px transparent image instead.
<style type="text/css" >
video{
background: transparent url("poster.jpg") 50% 50% / cover no-repeat ;
}
</style>
<video controls poster="data:image/gif...
Multiple linear regression in Python
...5
Df Residuals: 19 BIC: 64.59
Df Model: 3
==============================================================================
coef std err t P>|t| ...
Compare double to zero using epsilon
...
Assuming 64-bit IEEE double, there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 ...
Add st, nd, rd and th (ordinal) suffix to a number
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How to get the system uptime in Windows? [closed]
...d -eq 6005 -or $_.Id -eq 6006}
6: Programmatically, by using GetTickCount64
GetTickCount64 retrieves the number of milliseconds that have elapsed since the system was started.
7: By using WMI
wmic os get lastbootuptime
8: The new uptime.exe for Windows XP and up
Like the tool from Micros...
Modify Address Bar URL in AJAX App to Match Current State
...n you want to save the state, you serialize the object (using JSON and base64 encoding). You can then set the fragment of the href to this string.
var encodedState = base64(json(state));
var newLocation = oldLocationWithoutFragment + "#" + encodedState;
document.location = newLocation; // adds ne...
PHP编译安装时常见错误解决办法，php编译常见错误 - 更多技术 - 清泛网 - ...
...stall
added 20141003：
Cannot find imap
代码如下:
ln -s /usr/lib64/libc-client.so /usr/lib/libc-client.so
configure: error: utf8_mime2text() has new signature, but U8T_CANONICAL is missing.
代码如下:
yum -y install libc-client-devel
Cannot find ldap.h
代码如下:
yum -y in...
Regex to validate date format dd/mm/yyyy
...uzonOfir Luzon
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Where is Developer Command Prompt for VS2013?
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Finally the one true answer. For 64bit, right click and change Target to be: %comspec% /k ""C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat"" amd64
– Dirk Bester
Mar 31 '15 at 20:22
...
Best practices around generating OAuth tokens?
...ones. All our token has first byte as version.
Use URL-safe version of Base64 to encode the BLOB so you don't have to deal with the URL-encoding issues, which makes debugging more difficult with OAuth signature, because you may see triple encoded basestring.
...