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I forgot the password I entered during postgres installation
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When connecting to postgres from command line, don't forget to add -h localhost as command line parameter. If not, postgres will try to connect using PEER authentication mode.
The below shows a reset of the password, a failed login with PEER authentica...
Original purpose of ? [closed]
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I can only imagine of sending a value from the server to the client which is (unchanged) sent back to maintain a kind of a state.
Precisely. In fact, it's still being used for this purpose today because HTTP as we know it today is still, at least fundamentally, ...
Why should I implement ICloneable in c#?
Can you explain to me why I should inherit from ICloneable and implement the Clone() method?
4 Answers
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Overriding fields or properties in subclasses
...or a property that will have a different value in each class that inherits from this parent class.
10 Answers
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Is there a decorator to simply cache function return values?
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Starting from Python 3.2 there is a built-in decorator:
@functools.lru_cache(maxsize=100, typed=False)
Decorator to wrap a function with a memoizing callable that saves up to the maxsize most recent calls. It can save time when an ...
How to assign colors to categorical variables in ggplot2 that have stable mapping?
...levels in multiple data frames can become tedious if they are being pulled from separate files and not all factor levels appear in each file.
One way to address this is to create a custom manual colour scale as follows:
#Some test data
dat <- data.frame(x=runif(10),y=runif(10),
grp = re...
How to send a stacktrace to log4j?
...eparator(), this helped me to print a stacktrace which I got as a response from a remote service
– Stephanie
May 13 '16 at 6:46
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Programmatically align a toolbar on top of the iPhone keyboard
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This is based on the existing answer from tonklon - I'm just adding a code snippet that shows a semi transparent black toolbar on top of the keyboard, together with a "done" button on the right:
UIToolbar *toolbar = [[[UIToolbar alloc] init] autorelease];
[tool...
byte[] to file in Java
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From the doc: NOTE: As from v1.3, the parent directories of the file will be created if they do not exist.
– bmargulies
Dec 3 '10 at 21:51
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What's a good IDE for Python on Mac OS X? [closed]
...and refactoring, and whose primary development language is Python. I come from the Java world, and have been a confident user of Eclipse for a good, long time. When not working in Java, I use emacs.
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