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.NET: Which Exception to Throw When a Required Configuration Setting is Missing?
...itation on how you choose to use/reuse an existing exception.
It's your application- as long as you document it and clearly indicate the exception that will be thrown in the specific case of a missing configuration value, you can use any exception you like. If you do want a very specific indicat...
How can I measure the similarity between two images? [closed]
I would like to compare a screenshot of one application (could be a Web page) with a previously taken screenshot to determine whether the application is displaying itself correctly. I don't want an exact match comparison, because the aspect could be slightly different (in the case of a Web app, depe...
Add timestamps to an existing table
... @Michael: I've been using MongoDB exclusively with the 3.1 app I'm working on so I haven't worked with 3.1 AR migrations. The docs indicate that everything is moving towards instance methods (for unknown reasons).
– mu is too short
Sep 25 '11 at...
Using Razor within JavaScript
...if you just have one or two lines of JavaScript code to add. The following approach would probably be preferable, because it reduces the size of the generated HTML. (You could even move the addMarker function to a static, cached JavaScript file to further reduce the size):
<script type="text/jav...
How to convert an xml string to a dictionary?
...lement) == 1 or element[0].tag != element[1].tag:
self.append(XmlDictConfig(element))
# treat like list
elif element[0].tag == element[1].tag:
self.append(XmlListConfig(element))
elif element.text:
te...
How to Detect if I'm Compiling Code with a particular Visual Studio version?
...
It appear that this macro doesn't reflect the compiler version used by the project. I.e. if you open a VS2010 project in a newer version without upgrading the project this macro doesn't reflect the compiler being used - only the...
Why are Oracle table/column/index names limited to 30 characters?
...tually, I think it's the SQL-92 standard.
A later version of the standard appears to optionally allow for 128 character names, but Oracle doesn't yet support this (or has partial support for it, insofar as it allows 30 characters. Hmmm.)
Search for "F391, Long identifiers" on this page... http:/...
Gzip versus minify
...ebsite. CSS Optimiser is used for minification. The standard Linux archive app that comes with Ubuntu was used for Gzipping.
Original: 28,781 bytes
Minified: 22,242 bytes
Gzipped: 6,969 bytes
Min+Gzip: 5,990 bytes
My personal opinion is to go for Gzipping first, since that obviously makes the bigg...
创业 比“直男癌”更可怕的是“技术癌” - 资讯 - 清泛网 - 专注C/C++及内核技术
...是聪明的国人则更近了一步，用几十元的自拍杆+免费的App美图秀秀的组合轻松达到了同样的目的。
然而更进一步分析发现：自拍杆和美图秀秀这对黄金搭档的市场表现迥异，引人深思。自拍杆的生产壁垒低，所以生产厂商众多...
C++ equivalent of java's instanceof
... call. It also works regardless of RTTI is enabled or not.
Note that this approach doesn't support multiple levels of inheritance so if you're not careful you might end with code looking like this:
// Here we have a SpecialBox class that inherits Box, since it has its own type
// we must check for...