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Rails 4 Authenticity Token
I was working on a new Rails 4 app (on Ruby 2.0.0-p0) when I ran into some authenticity token problems.
13 Answers
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Rename a git submodule
...pping (like status and diff) behave strangely.
Let "git mv" help here by not only moving the submodule's work tree but also updating the "submodule.<submodule name>.path" setting from the .gitmodules file and stage both.
This doesn't happen when no .gitmodules file is found and only iss...
How do I tell if a regular file does not exist in Bash?
...;& versus using -f with ||. This has to do with the exit code returned by the non/existence check. If you need your line to always exit cleanly with exit code 0 (and sometimes you don't want this constraint), the two approaches are not interchangeable. Alternatively, just use an if statement and...
How is the default max Java heap size determined?
...FlagsFinal -version | grep HeapSize
I believe the resulting output is in bytes.
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How do I focus on one spec in jasmine.js?
...m a rather large architectural change. I'd like to work on fixing them one by one by tagging each one with 'focus'.
9 Answe...
Most efficient method to groupby on an array of objects
What is the most efficient way to groupby objects in an array?
43 Answers
43
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What does the restrict keyword mean in C++?
...t while restrict is not part of the C++ standard yet, that it is supported by many compilers and he recommends it's usage when available:
restrict keyword
! New to 1999 ANSI/ISO C standard
! Not in C++ standard yet, but supported by many C++ compilers
! A hint only, so ...
Error while installing json gem 'mkmf.rb can't find header files for ruby'
...h has a firewall. I'm setting up my environment through a proxy. I have ruby 1.8.7 . When I try to gem install..
16 Answer...
Difference between SurfaceView and View?
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@Ralphleon : What do you mean by Surface Views cannot be transparent? Can other views overlap the Surface view? For example, can I display a ListView on a Surface view temporarily?
– Ashwin
Aug 11 '13 at 6:10
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Using emit vs calling a signal as if it's a regular function in Qt
...the generated code for the signal emitting function, which you can look at by inspecting the C++ code generated by moc.
For example a foo signal with no parameters generates this member function:
void W::foo()
{
QMetaObject::activate(this, &staticMetaObject, 0, 0);
}
And the code emit fo...