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What is the difference between and ? [duplicate]
...ntimeLibrary.include(request, response, "reusable.html", out, false);
So now you know that the include directive inserts the source of reuse.html at translation time but the action tag inserts the response of reuse.html at runtime.
If you think about it, there is an extra performance hit with eve...
Find a value anywhere in a database
...ast no the way he did. I'm not sure if this was the case back in 2009, but nowadays, answers are CC-BY-SA 3.0
– Arturo Torres Sánchez
Mar 11 '19 at 15:50
3
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How to use RSpec's should_raise with any kind of exception?
...
The syntax changed recently and now it is:
expect { ... }.to raise_error(ErrorClass)
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Just what is Java EE really? [closed]
...ely installable as packages. Perhaps one day many or even all classes that now make up Java EE will be such package as well. Time will tell.
Why are there so many Java EE offerings when there is really only two main flavors of standard Java (Oracle JVM/SDK | OpenJDK JVM/JDK)?
There are more than j...
How to copy an object in Objective-C
...lways with reference types, there are two notions of "copy". I'm sure you know them, but for completeness.
A bitwise copy. In this, we just copy the memory bit for bit - this is what NSCopyObject does. Nearly always, it's not what you want. Objects have internal state, other objects, etc, and ofte...
Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?
...rations for the code in class.cpp by including class.h. It only needs to know what these functions or variables look like (which is what a declaration gives you). So it compiles your main.cpp file into some object file (call it main.obj). Similarly, class.cpp is compiled into a class.obj file. T...
How do you write a migration to rename an ActiveRecord model and its table in Rails?
...y.
Edit:
In Rails 3.1 & 4, ActiveRecord::Migration::CommandRecorder knows how to reverse rename_table migrations, so you can do this:
class RenameOldTableToNewTable < ActiveRecord::Migration
def change
rename_table :old_table_name, :new_table_name
end
end
(You still have to go t...
Getting vertical gridlines to appear in line plot in matplotlib
...ength=20, color='b')
ax.tick_params(which='minor', length=10, color='r')
Now to force the grid lines to be appear also on the Minor tick-marks, pass the which='minor' to the method:
ax.grid(b=True, which='minor', axis='x', color='#000000', linestyle='--')
or simply use which='both' to draw both...
Read an Excel file directly from a R script
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And now there is readxl:
The readxl package makes it easy to get data out of Excel and into R.
Compared to the existing packages (e.g. gdata, xlsx, xlsReadWrite etc)
readxl has no external dependencies so it's easy to ins...
“Public key certificate and private key doesn't match” when using Godaddy issued certificate [closed
...nux ami). I had no problems getting that setup directly on the server. I now need to move the certificate from the web server to the new load balancer. Amazon requires the private key and certs to be in PEM format, so I used the "rekey" tool at GoDaddy to create new certs. When I load those in t...