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Super-simple example of C# observer/observable with delegates
... let the .Dispose method do the opposite of the code in the constructor
No error-checking performed, at least a null-check should be done in the constructor of the ObserverClass
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Extract value of attribute node via XPath
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data() function on an attribute gives the error "XPath error : Invalid expression" in xmllint.
– codesniffer
Sep 1 at 14:01
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Git: How do I list only local branches?
git branch -a shows both remote and local branches.
9 Answers
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How to generate and validate a software license key?
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– Marvin Thobejane
Oct 27 '15 at 7:05
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How to check if an email address exists without sending an email?
... Some servers will even accept the message but then later send a error message back to the envelope sender, especially if its a large organization with many internal departments with their own mail servers. The border server might not even know all accounts within.
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rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
...and there are missing precompiled files you will get an "AssetNoPrecompiledError" indicating the name of the missing file.
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psql: could not connect to server: No such file or directory (Mac OS X)
Upon restarting my Mac I got the dreaded Postgres error:
21 Answers
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What is the most efficient string concatenation method in python?
Is there any efficient mass string concatenation method in Python (like StringBuilder in C# or StringBuffer in Java)? I found following methods here :
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MISCONF Redis is configured to save RDB snapshots
During writes to Redis ( SET foo bar ) I am getting the following error:
31 Answers
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How to run travis-ci locally
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answered Feb 28 '18 at 0:05
William EntrikenWilliam Entriken
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