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All Ruby tests raising: undefined method `authenticate' for nil:NilClass
...er! function is part of Rails 3 (using the new devise feature, of which I know little about). If the app can't find the User model (either because of namespace issues or whatever reason) then the method will fail. The "enki" application you linked to is now a Rails 3 application. It could be expe...
Is there any particular difference between intval and casting to int - `(int) X`?
...e this is an old thread, and if you are still programming, then I hope you now see why this is actually the most obvious result. An int has no base because base is only used in string representations. Or more simply, an int of 12 in base 10 is the same as an int of 12 in base 99. It is still 12. ...
How to enable C++11 in Qt Creator?
...elete your duplicate/incomplete answer, all I could do was to downvote it. Now that you have edited it to make it more presentable, I am happy with just the downvote.
– nurettin
Aug 21 '14 at 12:55
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Is a LINQ statement faster than a 'foreach' loop?
...
LINQ is slower now, but it might get faster at some point. The good thing about LINQ is that you don't have to care about how it works. If a new method is thought up that's incredibly fast, the people at Microsoft can implement it without e...
Visual Studio: How to “Copy to Output Directory” without copying the folder structure?
...jectDir)\Lib, but add those files "As a link" to the root of your .csproj. Now they will get copied to bin\Debug (or whatever other output folder) without being in lib.
EDIT: This answer was written way back when ContentWithTargetPath was not available in the versions of VS/MSBuild I was using. Lea...
Several ports (8005, 8080, 8009) required by Tomcat Server at localhost are already in use
...ch is using about 400 MB or more RAM will also solve the problem. It is unknowingly reserving the process.
– viper
Jun 10 '16 at 7:00
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What is meant with “const” at end of function declaration? [duplicate]
...4) will internally correspond to something like Foo f; Foo_Bar(&f, 4). Now adding the const at the end (int Foo::Bar(int random_arg) const) can then be understood as a declaration with a const this pointer: int Foo_Bar(const Foo* this, int random_arg). Since the type of this in such case is cons...
Ternary operator in AngularJS templates
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Update: Angular 1.1.5 added a ternary operator, so now we can simply write
<li ng-class="$first ? 'firstRow' : 'nonFirstRow'">
If you are using an earlier version of Angular, your two choices are:
(condition && result_if_true || !condition && resu...
What is Node.js? [closed]
...vent loops with first class function objects and closures. People already know how to use it this way having used it in the browser to respond to user initiated events.
A lot of people already know JavaScript, even people who do not claim to be programmers. It is arguably the most popular programmin...
Using module 'subprocess' with timeout
...
I don't know much about the low level details; but, given that in
python 2.6 the API offers the ability to wait for threads and
terminate processes, what about running the process in a separate
thread?
import subprocess, threading
c...