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How to get record created today by rails activerecord?
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@evanrmurphy can/should you revise your comment from "Rails 3 only" to "Rails 3 and greater"?
– kaichanvong
Feb 11 '14 at 6:10
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What's the difference between Invoke() and BeginInvoke()
....BeginInvoke is easier to get right, and will avoid your background thread from having to wait for no good reason. Note that the Windows Forms team has guaranteed that you can use Control.BeginInvoke in a "fire and forget" manner - i.e. without ever calling EndInvoke. This is not true of async calls...
How do you represent a JSON array of strings?
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I'll elaborate a bit more on ChrisR awesome answer and bring images from his awesome reference.
A valid JSON always starts with either curly braces { or square brackets [, nothing else.
{ will start an object:
{ "key": value, "another key": value }
Hint: although javascript accepts single ...
Why not use Double or Float to represent currency?
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From Bloch, J., Effective Java, 2nd ed, Item 48:
The float and double types are
particularly ill-suited for monetary
calculations because it is impossible
to represent 0.1 (or any other
negative power of ten) as a...
How do I use Assert.Throws to assert the type of the exception?
...PI, for some reason I was having problems understanding how to use it just from the NUnit documents alone.
– aolszowka
Oct 19 '13 at 20:44
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Styling text input caret
...et-color: hsla(228, 4%, 24%, 0.8);
The caret-color property is supported from Firefox 55, and Chrome 60. Support is also available in the Safari Technical Preview and in Opera (but not yet in Edge). You can view the current support tables here.
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In HTML I can make a checkmark with ✓ . Is there a corresponding X-mark?
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From w3schools.com/charsets/ref_html_entities_4.asp, it looks like check and cross aren't supported in HTML4 or below.
– mwfearnley
Feb 15 '15 at 17:13
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Apache .htaccess 禁止访问某目录方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
....htaccess文件中添加一下两行代码。
order allow,deny
deny from all
(可以把all换成某一ip地址)最简单方法，在所要禁止的目录中的.htaccess文件中添加一下两行代码。
order allow,deny
deny from all
(可以把all换成某一ip地址)
【.htaccess...
pandas three-way joining multiple dataframes on columns
...ctools. So to use this function, you'll first need to import that module:
from functools import reduce
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list_display - boolean icons for methods
...documented, although it's a bit hard to find - go a couple of screens down from here, and you'll find this:
If the string given is a method of the model, ModelAdmin or a callable that returns True or False Django will display a pretty "on" or "off" icon if you give the method a boolean attribute...