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How do CSS triangles work?
...
Start with a basic square and borders. Each border will be given a different color so we can tell them apart:
.triangle {
border-color: yellow blue red green;
border-style: solid;
border-width: 200px 200px 200px ...
What's the difference between OpenID and OAuth?
... users to share their passwords with third-party applications. It actually started as a way to solve an OpenID problem: if you support OpenID on your site, you can't use HTTP Basic credentials (username and password) to provide an API because the users don't have a password on your site.
The problem...
How is performance affected by an unused using directive?
...unused referenced modules at
runtime. Which means that you will reduce the startup time of your
application, because it takes time to load each module and avoids
having the compiler load metadata that will never be used. You may
find that depending on the size of each library, your startup time
is n...
What's the proper way to install pip, virtualenv, and distribute for Python?
...BASE=https://pypi.python.org/packages/source/v/virtualenv
# --- Real work starts here ---
curl -O $URL_BASE/virtualenv-$VERSION.tar.gz
tar xzf virtualenv-$VERSION.tar.gz
# Create the first "bootstrap" environment.
$PYTHON virtualenv-$VERSION/virtualenv.py $INITIAL_ENV
# Don't need this anymore.
rm ...
Difference between ActionBarSherlock and ActionBar Compatibility
...ect.
The Action bar compatibility can be considered a "sample" or a good starting point if you only want to smack an Action Bar on top of your app.
ActionBarSherlock builds on the compatibility library, and gives you (like the action bar compatibility sample) an Action Bar on pre-3.0 devices. In ...
Tar archiving that takes input from a list of files
... simple, using the --exclude flag allows this. Assuming your comment lines start with a '#', a command such as the following would ignore / exclude any attempted file operations on lines containing cmments, i.e. your command can look like this: tar -cvf allfiles.tar --exclude='^#' -T mylist.txt. Tar...
How to fix the Hibernate “object references an unsaved transient instance - save the transient insta
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Wouldn't it be better to start with CascadeType.PERSIST and use persist to save?
– Sergii Shevchyk
Sep 27 '12 at 19:07
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How to get current memory usage in android?
...fficient. OS needs to know what the accepted answer gives, to know when to start killing apps that haven't been used recently. But an app programmer needs to know what THIS answer (and android developer's similar answer) tells you, vs. runtime.maxMemory.
– ToolmakerSteve
...
How to get UTC time in Python?
... of time spent between two dates all that you need is to substract end and start dates. The results of such substraction is a timedelta object.
From the python docs:
class datetime.timedelta([days[, seconds[, microseconds[, milliseconds[, minutes[, hours[, weeks]]]]]]])
And this means that by de...
What is a unix command for deleting the first N characters of a line?
...
Use cut. Eg. to strip the first 4 characters of each line (i.e. start on the 5th char):
tail -f logfile | grep org.springframework | cut -c 5-
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