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Change a Rails application to production
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This would now be
rails server -e production
Or, more compact
rails s -e production
It works for rails 3+ projects.
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impr...
Why does range(start, end) not include end?
...ameters represents the "start and end".
It is actually start and "stop".
Now, if it were the "end" value then, yes, you might expect that number would be included as the final entry in the sequence. But it is not the "end".
Others mistakenly call that parameter "count" because if you only ever us...
What does a lazy val do?
...ng resources. If we suppose that y has no side effects and that we do not know how often it is accessed (never, once, thousands of times) it is useless to declare it as def since we don't want to execute it several times.
If you want to know how lazy vals are implemented, see this question.
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Regex - Does not contain certain Characters
...special characters: the shell interprets some of them. Look to see if you now have a file named ']+$' in your directory. Put the entire regex inside single quotes to make it work.
– Ned Batchelder
Sep 11 '17 at 23:50
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Remove characters after specific character in string, then remove substring?
...);
What this does is, takes everything before the $ char and removes it. Now if you want to remove the items after a character, just change the +1 to a -1 and you are set!
But for a URL, I would use the built in .NET class to take of that.
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How to create Gmail filter searching for text only at start of subject line?
...eature requests was, er canned, the original is on archive.org dated 2012, now you just get redirected to a dumbed down page telling you how to give feedback. Lack of SIEVE support was covered in answer 78761 Does Gmail support all IMAP features?, since some time in 2015 that answer silently redirec...
What is the difference between a deep copy and a shallow copy?
...lection structure, not the elements. With a shallow copy, two collections now share the individual elements.
Deep copies duplicate everything. A deep copy of a collection is two collections with all of the elements in the original collection duplicated.
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JavaScript variable assignments from tuples
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It is now in fact part of ES6.
– Pier Paolo Ramon
Oct 18 '14 at 13:00
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How to redirect 'print' output to a file using python?
...t sys
sys.stdout=open("test.txt","w")
print ("hello")
sys.stdout.close()
Now the hello will be written to the test.txt file. Make sure to close the stdout with a close, without it the content will not be save in the file
s...
Deserialize json object into dynamic object using Json.net
...be :) Dynamic is an anti pattern in almost every circumstances, but, every now and then, you may have a situation where it's reasonable to use it.
– Pluc
Mar 18 '16 at 18:30
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