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What does “S3 methods” mean in R?
...me recommend to use S3 over S4 if possible (See Google's R Style Guide at http://google-styleguide.googlecode.com/svn/trunk/google-r-style.html )*. However, I do not know the exact definition of S3 methods/objects.
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Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence
... #python3 don't have this attribute.
#not suggest even in python2 #see:http://stackoverflow.com/questions/3828723/why-should-we-not-use-sys-setdefaultencodingutf-8-in-a-py-script
#2.overwrite /usr/lib/python2.7/sitecustomize.py or (sitecustomize.py and PYTHONPATH=".:$PYTHONPATH" python)
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Fastest Way to Serve a File Using PHP
...nd either isn't installed by default (apache), isn't active by default (lighttpd) or need a specific configuration (nginx).
Apache
Under apache if you use mod_php you need to install a module called mod_xsendfile then configure it (either in apache config or .htaccess if you allow it)
XSendFile o...
How to redirect 404 errors to a page in ExpressJS?
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I found this example quite helpful:
https://github.com/visionmedia/express/blob/master/examples/error-pages/index.js
So it is actually this part:
// "app.router" positions our routes
// above the middleware defined below,
// this means that Express will attem...
What is Python buffer type for?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to limit the amount of concurrent async I/O operations?
...quests. Is there an easy way to limit the concurrent amount of these async http requests? So that no more than 20 web pages are downloaded at any given time. How to do it in the most efficient manner?
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How to install gem from GitHub source?
...specific_install -l <url to a github gem>
e.g.
gem specific_install https://github.com/githubsvnclone/rdoc.git
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Assign output to variable in Bash
... ec2 instance region from within the instance.
INSTANCE_REGION=$(curl -s 'http://169.254.169.254/latest/dynamic/instance-identity/document' | python -c "import sys, json; print json.load(sys.stdin)['region']")
echo $INSTANCE_REGION
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What is the ellipsis (…) for in this method signature?
...er2.withRecipientJids(jid1, jid2, jid78_a, someOtherJid);
See more here:
http://java.sun.com/j2se/1.5.0/docs/guide/language/varargs.html
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Create RegExps on the fly using string variables
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Yes you can.
https://developer.mozilla.org/en/JavaScript/Guide/Regular_Expressions
function replace_foo(target, string_to_replace, replacement) {
var regex = new RegExp("^" + string_to_replace);
return target.replace(regex, replace...