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Get all column names of a DataTable into string array using (LINQ/Predicate)
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– Daniel Hilgarth
May 17 '13 at 8:08
3
@FLICKER: Some thinking is still required as a developer...
In JavaScript, is returning out of a switch statement considered a better practice than using break?
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10
@Mark Costello's answer made me thank a bit more about your question. I think you're looking for a general "best practice" guideline, but i...
List distinct values in a vector in R
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answered Oct 13 '11 at 14:08
csgillespiecsgillespie
52.3k1313 gold badges127127 silver badges169169 bronze badges
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Create a completed Task
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answered Nov 22 '10 at 13:51
QrystaLQrystaL
4,63422 gold badges2121 silver badges2828 bronze badges
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rails 3 validation on uniqueness on multiple attributes
I use Rails 3.0.0.beta4
3 Answers
3
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Heroku free account limited?
... requests. If each instance of your application can serve each request in 100ms, then you get 600 requests/minute with the free account.
Your application code and its assets (the slug) are limited to 300 MB in total. Your application also has access to the local filesystem, which can serve as an ep...
Cross-browser custom styling for file upload button [duplicate]
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label.myLabel input[type="file"] {
position:absolute;
top: -1000px;
}
/***** Example custom styling *****/
.myLabel {
border: 2px solid #AAA;
border-radius: 4px;
padding: 2px 5px;
margin: 2px;
background: #DDD;
display: inline-block;
}
.myLabel:hove...
Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
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Did you mean sprintf '%02d', n?
irb(main):003:0> sprintf '%02d', 1
=> "01"
irb(main):004:0> sprintf '%02d', 10
=> "10"
You might want to reference the format table for sprintf in the future, but for this particular example '%02d' mea...
is_file or file_exists in PHP
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answered Apr 27 '09 at 10:00
hbwhbw
14.6k55 gold badges4646 silver badges5656 bronze badges
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C# how to create a Guid value?
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answered Feb 26 '10 at 19:02
DavidDavid
10.6k11 gold badge1919 silver badges1717 bronze badges
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