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Repairing Postgresql after upgrading to OSX 10.7 Lion
I recently upgraded to OSX 10.7, at which point my rails installation completely borked when trying to connect to the psql server. When I do it from the command line using
...
Appending an element to the end of a list in Scala
...'s because you shouldn't do it (at least with an immutable list).
If you really really need to append an element to the end of a data structure and this data structure really really needs to be a list and this list really really has to be immutable then do eiher this:
(4 :: List(1,2,3).reverse).rev...
javac option to compile all java files under a given directory recursively
...oject and don't have any proper build tools nearby, you can always use a small trick that javac offers: the classnames to compile can be specified in a file. You simply have to pass the name of the file to javac with the @ prefix.
If you can create a list of all the *.java files in your project, it'...
How to switch to the new browser window, which opens after click on the button?
...ose() closes both windows. It only closes the current. driver.quit() kills all instances. I can see somebody already pointed this out to you. Your comment is full of mistakes. Have a good day.
– silver
Aug 28 '17 at 18:12
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What is “loose coupling?” Please provide examples
...pt of "loose coupling." I suppose it doesn't help that the word "loose" usually has a negative connotation, so I always forget that loose coupling is a good thing.
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Eclipse / Android : “Errors running builder 'Android Pre Compiler' on project…”
...
For those of you who don't want to install preview version of ADT, there is a workaround described here.
Open properties of project in Eclipse then Resources -> Resource filters.
Click the "Add..." button -> Check "Exclude all", "Files and folders",...
Make WPF window draggable, no matter what element is clicked
....ChangedButton == MouseButton.Left)
this.DragMove();
}
This will allow users to drag the Window when they click/drag on any control, EXCEPT for controls which eat the MouseDown event (e.Handled = true)
You can use PreviewMouseDown instead of MouseDown, but the drag event eats the Click ev...
Android Endless List
...ling in the middle of the screen? it should only load the next 10 when actually reaching the list bottom.
– Matthias
Aug 5 '10 at 10:13
9
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Django - what is the difference between render(), render_to_response() and direct_to_template()?
...and spanking new shortcut for render_to_response in 1.3 that will automatically use RequestContext that I will most definitely be using from now on.
2020 EDIT: It should be noted that render_to_response() was removed in Django 3.0
https://docs.djangoproject.com/en/1.8/topics/http/shortcuts/#rend...
Using SSH keys inside docker container
...h_prv_key
ARG ssh_pub_key
RUN apt-get update && \
apt-get install -y \
git \
openssh-server \
libmysqlclient-dev
# Authorize SSH Host
RUN mkdir -p /root/.ssh && \
chmod 0700 /root/.ssh && \
ssh-keyscan github.com > /root/.ssh/known_hos...