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Python string class like StringBuilder in C#?
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Note that this article was written based on Python 2.2. The tests would likely come out somewhat differently in a modern version of Python (CPython usually successfully optimizes concatenation, but you don't want to depend on this in important code) and a gene...
Phone: numeric keyboard for text input
... required. Note that this will work with type='numeric'. This is suggested based on the linked documents reference for zip code.
– Brett Ryan
Sep 18 '13 at 11:08
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Remove white space below image [duplicate]
...lign: top or vertical-align: bottom on it. By default it is aligned on the baseline hence the few pixels beneath it.
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What does 'low in coupling and high in cohesion' mean
...er module then they are said to be highly coupled. This is where interface based programming helps. Any change within the module will not impact the other module as the interface (the mean of interaction ) between them has not changed.
High cohesion- Put the similar things together. So a class sho...
How to get a list of current open windows/process with Java?
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YAJSW (Yet Another Java Service Wrapper) looks like it has JNA-based implementations of its org.rzo.yajsw.os.TaskList interface for win32, linux, bsd and solaris and is under an LGPL license. I haven't tried calling this code directly, but YAJSW works really well when I've used it in th...
npm check and update package if needed
...auce)
Run npm update as usual to install the new versions of your packages based on the updated package.json
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How do I run a rake task from Capistrano?
...that. In any case Capistrano 2.0 is a history and the next version is Rake based (making things more predictable hopefully)
– dolzenko
Oct 30 '13 at 8:42
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Flash CS4 refuses to let go
...d forth, we have to save it locally, as compiling will cause a crazy error based on the timestamp of the file. Essentially, trying to compile a flash that's been saved in the future is the issue. We figured it out by changing our date on our OS's. Try checking your timestamp.
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Rails 2.3-style plugins and deprecation warnings running task in Heroku
... needed to be able to turn plugins on/off during my capistrano deployment, based on what flavor of the app I was deploying. Before I used config.plugins to specify what plugin to use. With this approach I'm using a "require" on config.before_configuration instead.
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How to calculate the number of occurrence of a given character in each row of a column of strings?
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If you don't want to leave base R, here's a fairly succinct and expressive possibility:
x <- q.data$string
lengths(regmatches(x, gregexpr("a", x)))
# [1] 2 1 0
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