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How to get execution time in rails console?
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242
timing = Benchmark.measure { Post.all }
The various attributes of the object returned (Bench...
Upload failed You need to use a different version code for your APK because you already have one wit
...this answer How to solve "Your APK's version code needs to be higher than 2." in Google Play's Developer Console? I have just changed the version code from 2 to 3 and it failed to upload the build.
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How do I include a file over 2 directories back?
How do you include a file that is more than 2 directories back. I know you can use ../index.php to include a file that is 2 directories back, but how do you do it for 3 directories back?
Does this make sense?
I tried .../index.php but it isn't working.
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Scala constructor overload?
...structors in Scala must either call the primary constructor (as in landon9720's) answer, or another auxiliary constructor from the same class, as their first action. They cannot simply call the superclass's constructor explicitly or implicitly as they can in Java. This ensures that the primary const...
Check if multiple strings exist in another string
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edited Apr 29 at 0:34
rjurney
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ans...
How to change a command line argument in Bash?
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2 Answers
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Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?
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answered Jun 21 '11 at 2:22
dkaminsdkamins
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Closure in Java 7 [closed]
...e pioneers introducing closures in Java. His post on closures from January 28, 2007 is named A Definition of Closures On his blog there is lots of information to get you started as well as videos. An here is an excellent Google talk - Advanced Topics In Programming Languages - Closures For Java with...
What is the difference between JOIN and UNION?
...mpletely different operations. Trivial example of UNION:
mysql> SELECT 23 AS bah
-> UNION
-> SELECT 45 AS bah;
+-----+
| bah |
+-----+
| 23 |
| 45 |
+-----+
2 rows in set (0.00 sec)
similary trivial example of JOIN:
mysql> SELECT * FROM
-> (SELECT 23 AS bah) AS fo...
How to initialize a dict with keys from a list and empty value in Python?
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dict.fromkeys([1, 2, 3, 4])
This is actually a classmethod, so it works for dict-subclasses (like collections.defaultdict) as well. The optional second argument specifies the value to use for the keys (defaults to None.)
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