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Learning Regular Expressions [closed]
..., interactive exercises.
Regular Expressions - Everything you should know (PDF Series)
Regex Syntax Summary
How Regexes Work
Footnote
†: The statement above that . matches any character is a simplification for pedagogical purposes that is not strictly true. Dot matches any character except newl...
Adding images or videos to iPhone Simulator
... and Holding on the image. If you drag an image (or any other file, like a PDF) to the simulator, it will immediately open Safari and display the image, so this is quite an easy way of getting images to it.
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What do ellipsis […] mean in a list?
...bject: http://undergraduate.csse.uwa.edu.au/units/CITS3211/lectureNotes/14.pdf
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Files showing as modified directly after a Git clone
... git status, unset their text attribute before running git add -u.
manual.pdf -text
Conversely, text files that Git does not detect can have normalization enabled manually.
weirdchars.txt text
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Possible reasons for timeout when trying to access EC2 instance
...happens. (Recommended reading: Architecting for the Cloud: Best Practices (PDF), a paper by Jinesh Varia who is a web services evangelist at Amazon. See especially the section titled "Design for failure and nothing will fail".)
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Why are data transfer objects (DTOs) an anti-pattern?
...ample:
http://www.softwaresummit.com/2003/speakers/DudneyJ2EEAntiPatterns.pdf
There are also a number of abuses of DTOs mentioned here:
http://anirudhvyas.com/root/2008/04/19/abuses-of-dto-pattern-in-java-world/
They originated because of three tier systems (typically using EJB as technology) as...
Regular expression to allow spaces between words
...ccidental double-spaces, or if you're working with copy-pasted text from a PDF), then add a + after the space:
^\w+( +\w+)*$
If you want to allow tabs and newlines (whitespace characters), then replace the space with a \s+:
^\w+(\s+\w+)*$
Here I suggest the + by default because, for example, Wi...
IntelliJ IDEA hint parameters of method
...), it should show something similar.
You may also find the reference card (PDF) handy.
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Specifying an Index (Non-Unique Key) Using JPA
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= Specifications =
JPA 2.1+: javax.persistence.Index (or see JSR-000338 PDF, p. 452, item 11.1.23)
The JPA @Index annotation can only be used as part of another annotation like @Table, @SecondaryTable, etc.:
@Table(indexes = { @Index(...) })
JDO 2.1+: javax.jdo.annotations.Index
= ORM Framewo...
Why does Google +1 record my mouse movements? [closed]
...nd Agichtein from CHI 2010 http://www.mathcs.emory.edu/~qguo3/wip287-guo11.pdf can provide further ideas on why Google is doing that.
Apparently mouse movements is a rough proxy for eye movement and allows people to approximate eye tracking results.
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