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How to select a CRAN mirror in R
... anymore about the repository. Example:
install.packages('RMySQL', repos='http://cran.us.r-project.org')
Here you have a list of mirrors for R.
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NSOperation vs Grand Central Dispatch
...work "into the background" with very little additional work) use GCD
ref:
https://cocoacasts.com/choosing-between-nsoperation-and-grand-central-dispatch/
http://iosinfopot.blogspot.in/2015/08/nsthread-vs-gcd-vs-nsoperationqueue.html
http://nshipster.com/nsoperation/
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How to get VM arguments from inside of Java application?
...ething there to help you.
The sun website has a bunch on the technology:
http://java.sun.com/javase/6/docs/technotes/guides/management/mxbeans.html
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How to call a Python function from Node.js
...%j', results);
});
For the full documentation and source code, check out https://github.com/extrabacon/python-shell
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pip install from git repo branch
...
Prepend the url prefix git+ (See VCS Support):
pip install git+https://github.com/tangentlabs/django-oscar-paypal.git@issue/34/oscar-0.6
And specify the branch name without the leading /.
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
...table, so in your bar table you must have a unique (name) index.
See also http://www.postgresql.org/docs/9.1/static/ddl-constraints.html#DDL-CONSTRAINTS-FK and specifically:
Finally, we should mention that a foreign key must reference columns
that either are a primary key or form a unique con...
How to do date/time comparison
...intf("Lifespan is %+v", diff)
The program outputs:
Lifespan is 3h0m0s
http://play.golang.org/p/bbxeTtd4L6
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How to dump a dict to a json file?
...retty-print json file.
The tricks print >> f, j is found from here:
http://www.anthonydebarros.com/2012/03/11/generate-json-from-sql-using-python/
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Is there a way to word-wrap long words in a div?
... use of word-wrap for IE, designed to break unbroken strings).
/* Source: http://snipplr.com/view/10979/css-cross-browser-word-wrap */
.wordwrap {
white-space: pre-wrap; /* CSS3 */
white-space: -moz-pre-wrap; /* Firefox */
white-space: -pre-wrap; /* Opera <7 */
wh...
How can I remove the gloss on a select element in Safari on Mac?
...nd; You have to write
-webkit-appearance:none;
in your css.
read this http://trentwalton.com/2010/07/14/css-webkit-appearance/
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