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Rails: What's a good way to validate links (URLs)?
...# app/validators/uri_vaidator.rb
require 'net/http'
# Thanks Ilya! http://www.igvita.com/2006/09/07/validating-url-in-ruby-on-rails/
# Original credits: http://blog.inquirylabs.com/2006/04/13/simple-uri-validation/
# HTTP Codes: http://www.ruby-doc.org/stdlib/libdoc/net/http/rdoc/classes/Net/HTTPRe...
How to suppress Update Links warning?
...t suggestions in his updated answer (shared for your convenience): https://www.dropbox.com/s/mv88vyc27eljqaq/Book1withLinkToBook2.xlsx Linked book was then deleted so that link in the shared book is unavailable (for sure).
Manual Opening
The above shared file shows on opening (having the above lis...
horizontal scrollbar on top and bottom of table
... Did you get it to work? For more on jQuery, see api.jquery.com/scrollLeft (Of course, you can do it without jQuery by attaching onscroll handlers directly.) For graceful degradation for users with no JS, you can add the dummy div to the DOM by JS.
– StanleyH
...
Which is the best library for XML parsing in java [closed]
...javase/6/docs/api/javax/xml/parsers/SAXParserFactory.html
Example: http://www.mkyong.com/java/how-to-read-xml-file-in-java-sax-parser/
DOMParser
You can use this parser if you need to do XPath queries or need to have the complete DOM available.
http://download.oracle.com/javase/6/docs/api/javax/...
Regex empty string or email
...a|jobs|museum)$)
see more about the email matching regex itself:
http://www.regular-expressions.info/email.html
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Escape a string for a sed replace pattern
...ows you to use other characters instead of / as separator:
sed 's#"http://www\.fubar\.com"#URL_FUBAR#g'
The double quotes are not a problem.
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Center image in div horizontally [duplicate]
...lass="outer">
<div class="inner">
<img src="http://www.5150studios.com.au/wp-content/uploads/2012/04/wide.jpg" alt="wide image" />
</div>
</div>
CSS
img
{
max-width: 100%;
max-height: 100%;
display: block;
margin: auto auto;
}
.outer
{
...
How do I find which rpm package supplies a file I'm looking for?
...
You go to http://www.rpmfind.net and search for the file.
You'll get results for a lot of different distros and versions, but quite likely Fedora and/or CentOS will pop up too and you'll know the package name to install with yum
...
AngularJS ng-click stopPropagation
...th=\"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 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
Difference between application/x-javascript and text/javascript content types
...etely correct mime-type for javascript is
application/javascript
http://www.iana.org/assignments/media-types/application/index.html
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