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How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...strptime can handle seconds since epoch. The number must be converted to a string:
require 'date'
DateTime.strptime("1318996912",'%s')
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Assign width to half available screen width declaratively
...k with the layout_width of the component, it skips directly to sharing the extra width according to weights.
– njzk2
Nov 28 '14 at 20:54
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Add string in a certain position in Python
...tion in Python that I can use to insert a value in a certain position of a string?
8 Answers
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HTML entity for the middle dot
...
There's actually six variants of this:
char description unicode html html entity utf-8
· Middle Dot U+00B7 · · C2 B7
• Bullet U+2022 • • ...
LINQ order by null column where order is ascending and nulls should be last
...
The solution for string values is really weird:
.OrderBy(f => f.SomeString == null).ThenBy(f => f.SomeString)
The only reason that works is because the first expression, OrderBy(), sort bool values: true/false. false result go first...
C++应用程序添加VBScript和JavaScript支持 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...for the array passed to your function by checking the .length property for string function or by some other means.
function CountParam(aParam)
{
var strPresent = "Parameter is : " + (aParam.length>0 ? "Present": "Not present");
return strPresent;
}
The same technique may be used ...
How to force the browser to reload cached CSS/JS files?
...HP function:
/**
* Given a file, i.e. /css/base.css, replaces it with a string containing the
* file's mtime, i.e. /css/base.1221534296.css.
*
* @param $file The file to be loaded. Must be an absolute path (i.e.
* starting with slash).
*/
function auto_version($file)
{
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How to disable CSS in Browser for testing purposes
...sting on the page with $('style,link[rel="stylesheet"]').remove() when the extra javascript is not overwhelmingly cumbersome.
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Disable ActiveRecord for Rails 4
...n without a database:
rails new myApp --skip-active-record
Notice the extra hyphen '-' as opposed to previous versions of Rails.
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What is `related_name` used for in Django?
...nstance). The formula Django uses is the name of the model followed by the
string _set. The related name parameter thus simply overrides Django’s default rather
than providing new behavior.
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