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Join strings with a delimiter only if strings are not null or empty
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to check if object (variable) is defined in R?
... looking for exists. Keep in mind that using exists with names used by R's base packages would return true regardless of whether you defined the variable:
> exists("data")
[1] TRUE
To get around this (as pointed out by Bazz; see ?exists), use the inherits argument:
> exists("data", inherit...
How To Remove Outline Border From Input Button
...outline:none;
}
input[type="button"]::-moz-focus-inner {
border: 0;
}
Demo
Accessibility (A11Y)
/* Don't forget! User accessibility is important */
input[type="button"]:focus {
/* your custom focused styles here */
}
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How can I use speech recognition without the annoying dialog in android phones
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Can't find the 'libpq-fe.h header when trying to install pg gem
... For me after run brew install postgressql i run ARCHFLAGS="-arch x86_64" gem install pg and works fine.
– overallduka
Oct 31 '14 at 17:05
5
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overlay two images in android to set an imageview
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How to get an absolute file path in Python
...
Today you can also use the unipath package which was based on path.py: http://sluggo.scrapping.cc/python/unipath/
>>> from unipath import Path
>>> absolute_path = Path('mydir/myfile.txt').absolute()
Path('C:\\example\\cwd\\mydir\\myfile.txt')
>>> str...
Eclipse IDE: How to zoom in on text?
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Ctrl++ and Ctrl+- works (using Eclipse 4.2.1 Win 7 64bit) Nice plugin, Thanks!
– Crocodile
Jan 10 '13 at 6:31
10
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Nested rows with bootstrap grid system?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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100% width table overflowing div container [duplicate]
...ntaining div, yet the table columns are still sized dynamically. jsfiddle demo.
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