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git: fatal: Could not read from remote repository
...he remote system as part of your remote's URL. Put the username, followed by an @, before the remote hostname.
git remote set-url website abc@***.com:path/to/repo
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Clojure: cons (seq) vs. conj (list)
...nj means to conj(oin an item onto a collection). The seq being constructed by cons starts with the element passed as its first argument and has as its next / rest part the thing resulting from the application of seq to the second argument; as displayed above, the whole thing is of class clojure.lang...
String.Join method that ignores empty strings?
...ngs (should usually be true, because you can't simply enter this character by keyboard).
Also, if you get the values from a database, then it's even simpler, since you can do it in SQL directly:
PostgreSQL & MySQL:
SELECT
concat_ws(' / '
, NULLIF(searchTerm1, '')
, NUL...
Java volatile reference vs. AtomicReference
...et has the memory effects of writing (assigning) a volatile variable.
By the way, that documentation is very good and everything is explained.
AtomicReference::lazySet is a newer (Java 6+) operation introduced that has semantics unachievable through volatile variables. See this post for more...
Maximum value for long integer
...erence (Python 2.x):
sys.maxint The largest positive integer supported by Python’s regular
integer type. This is at least 2**31-1. The largest negative integer
is -maxint-1 — the asymmetry results from the use of 2’s complement
binary arithmetic.
sys.maxsize The largest positive...
Disable Maven warning message - “Selected war files include a WEB-INF/web.xml which will be ignored”
...ing build configuration (i believe perhaps web.xml is added to the project by other means, and should't be packaged by default):
<project>
...
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
...
Specifying rails version to use when creating a new application
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This is RubyGems functionality, not Rails functionality; it's therefore not dependent on Rails version, and will work for other gems. (Thanks, this is a great answer!)
– Calrion
Sep 3 '11 at 1:02
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Error pushing to GitHub - insufficient permission for adding an object to repository database
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This will allow any new files created by another user to maintain the group permissions of the root directory. Otherwise, you'll have errors pushing up to the repository. See setuid and setgid
– syvex
Jul 7 '11 at 17:05
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When should assertions stay in production code? [closed]
...d about whether or not assertions, which in C++ only exist in debug builds by default, should be kept in production code or not.
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Open a buffer as a vertical split in VIM
...
Try:
:vert sb N
which will open a left vertical split (by default, unless you have modified some options).
To open a split to the right, on the other hand:
:vert belowright sb N
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