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Easiest way to flip a boolean value?

...;first().lights[PATTERN1_LIGHT + i].value ^= 1 is much more readable, less error prone, and fewer characters than the original code. – Vortico Oct 31 '17 at 10:40 3 ...
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JavaScript: Passing parameters to a callback function

... sorry, it was a syntax error in the main code, I thought was this because this is the first time I use a callback in JavaScript, you've helped me to understand it wasn't the probelm, and to see a great example. – vitto ...
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How to set up a PostgreSQL database in Django

... but I get this psycopg2.OperationalError: fe_sendauth: no password supplied when I run python manage.py syncdb. I set random table name and user name. – Yulong Jun 18 '12 at 15:29 ...
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How do I check if a variable exists in a list in BASH

...m2) echo "In the list" ;; not_an_item) echo "Error" >&2 exit 1 ;; esac done If the list is an array variable at runtime, one of the other answers is probably a better fit.
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Add an element to an array in Swift

... Error: Value of type 'Array<Element>' has no member 'appendContentsOf' – Dani Kemper Oct 17 '18 at 22:55 ...
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Is DateTime.Now the best way to measure a function's performance?

...ass/method. The StopWatch class does not need to be Disposed or Stopped on error. So, the simplest code to time some action is public partial class With { public static long Benchmark(Action action) { var stopwatch = Stopwatch.StartNew(); action(); stopwatch.Stop();...
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How to reload/refresh an element(image) in jQuery

... line just to verify the event is actually firing. The event fires with no errors. – Alexis Abril Jan 21 '10 at 16:14 3 ...
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Java compiler level does not match the version of the installed Java project facet

... file, and I'm not even sure I have the maven plugin. Yet I get this same error; my eclipse is set up to use java 1.7 but the facet page of my project will only let me choose 1.6. What am I doing wrong? – rjcarr Mar 13 '13 at 16:48 ...
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Linq: adding conditions to the where clause conditionally

... Why i am getting this error LINQ to Entities does not recognize the method 'System.String get_Item(System.String)' method, and this method cannot be translated into a store expression. – Ali Umair Jun 1 '16 a...
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Reading a resource file from within jar

...o I read a resource file from a Java jar file? Java Jar file: use resource errors: URI is not hierarchical share | improve this answer | follow | ...