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What's the difference between a continuation and a callback?
... browsing all over the web in search of enlightenment about continuations, and it's mind boggling how the simplest of explanations can so utterly confound a JavaScript programmer like myself. This is especially true when most articles explain continuations with code in Scheme or use monads.
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How to programmatically round corners and set random background colors
I'd like to round the corners of a view and also change the color of the view based on the contents at runtime.
8 Answers
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Can Android do peer-to-peer ad-hoc networking?
Is it possible to set up Android in ad-hoc peer-to-peer wifi mode? For example, I would like to have one phone broadcast a message, and have all peers in the network receive the broadcast, without having a server. I would like to use wifi since bluetooth range is more limited.
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What is a good Java library to zip/unzip files? [closed]
I looked at the default Zip library that comes with the JDK and the Apache compression libs and I am unhappy with them for 3 reasons:
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How can I redirect the output of the “time” command?
I tried to redirect the output of the time command, but I couldn't:
7 Answers
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How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]
... unmanaged C/C++ code, what are the best practices to detect memory leaks? And coding guidelines to avoid? (As if it's that simple ;)
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Python group by
Assume that I have a set of data pair where index 0 is the value and index 1 is the type:
6 Answers
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Can you supply arguments to the map(&:method) syntax in Ruby?
You're probably familiar with the following Ruby shorthand ( a is an array):
7 Answers
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Can't find the 'libpq-fe.h header when trying to install pg gem
...nx), 11.10 (Oneiric Ocelot), 12.04 (Precise Pangolin), 14.04 (Trusty Tahr) and 18.04 (Bionic Beaver)):
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/usr/include/postgresql/libpq-fe.h
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So try installing libpq-dev or its equivalent for your OS:
For Ubuntu/Debian systems: sudo apt-get install libpq-dev
On Red Hat Linux (RHEL) systems:...
Error Dropping Database (Can't rmdir '.test\', errno: 17)
...w to create a root password using the "mysqladmin -u root -p password" command, this was done all through the windows command editor. Now, the next process was to display the default databases (info. schema, mysql and test) which was achieved by using "SHOW DATABASES;"
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