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What is process.env.PORT in Node.js?
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In many environments (e.g. Heroku), and as a convention, you can set the environment variable ...
When to use the JavaScript MIME type application/javascript instead of text/javascript?
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243
In theory, according to RFC 4329, application/javascript.
The reason it is supposed to be app...
How to use JavaScript regex over multiple lines?
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257
[.\n] does not work because . has no special meaning inside of [], it just means a literal .. ...
Are table names in MySQL case sensitive?
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207
In general:
Database and table names are not case sensitive in Windows, and case sensitive in...
What is the difference between Sublime text and Github's Atom [closed]
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How is Atom different from Sublime?
Atom is an open source text editor/IDE, built on JavaScr...
How to ALTER multiple columns at once in SQL Server
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hdoghmen
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answered Aug 12 '10 at 7:30
Neil KnightNeil K...
Test for equality among all elements of a single vector
...== 1) return(TRUE)
x <- range(x) / mean(x)
isTRUE(all.equal(x[1], x[2], tolerance = tol))
}
If you were using this more seriously, you'd probably want to remove missing values before computing the range and mean.
sh...
Rails :dependent => :destroy VS :dependent => :delete_all
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The difference is with the callback.
The :delete_all is made directly in your application and...
What exactly is Arel in Rails 3.0?
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What exactly is Arel in Rails 3.0?
It's an object model for an algebra of relational query ope...
On delete cascade with doctrine2
...nd automatically delete the matching rows in the child table using Doctrine2.
2 Answers
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