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Rails create or update magic?
...this class to implement a create_or_update method. If an object is found it will update it, otherwise it will create a new one.
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Servlet for serving static content
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I came up with a slightly different solution. It's a bit hack-ish, but here is the mapping:
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet...
How to define two angular apps / modules in one page?
... using angular.bootstrap instead. AngularJS applications cannot be nested within each other.
-- http://docs.angularjs.org/api/ng.directive:ngApp
See also
https://groups.google.com/d/msg/angular/lhbrIG5aBX4/4hYnzq2eGZwJ
http://docs.angularjs.org/api/angular.bootstrap
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How to define an alias in fish shell?
I would like to define some aliases in fish. Apparently it should be possible to define them in
9 Answers
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Difference between Select and ConvertAll in C#
.... The ConvertAll method exists since .NET 2.0 whereas LINQ was introduced with 3.5.
You should favor Select over ConvertAll as it works for any kind of list, but they do the same basically.
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Most common C# bitwise operations on enums
For the life of me, I can't remember how to set, delete, toggle or test a bit in a bitfield. Either I'm unsure or I mix them up because I rarely need these. So a "bit-cheat-sheet" would be nice to have.
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How to tell if a string is not defined in a Bash shell script
... answer you are after is implied (if not stated) by Vinko's answer, though it is not spelled out simply. To distinguish whether VAR is set but empty or not set, you can use:
if [ -z "${VAR+xxx}" ]; then echo VAR is not set at all; fi
if [ -z "$VAR" ] && [ "${VAR+xxx}" = "xxx" ]; then echo V...
What does the NS prefix mean?
Many classes in Cocoa/Cocoa Touch have the NS prefix. What does it mean?
9 Answers
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Import a file from a subdirectory?
.../tutorial/modules.html
In short, you need to put a blank file named
__init__.py
in the "lib" directory.
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Stop an input field in a form from being submitted
I'm writing some javascript (a greasemonkey/userscript) that will insert some input fields into a form on a website.
12 Ans...