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How do I delete an exported environment variable?
...enerally, each time a terminal window is opened, it will load up variables from various places such as ~/.bashrc, ~/.profile, etc. Any variables you set in one terminal instance will not carry over to another. If you have a variable which seems to be set automatically every time you open terminal, t...
System.Timers.Timer vs System.Threading.Timer
...ill, by default, call your timer event handler on a worker thread obtained from the common language runtime (CLR) thread pool. [...] The System.Timers.Timer class provides an easy way to deal with this dilemma—it exposes a public SynchronizingObject property. Setting this property to an instance o...
jQuery get values of checked checkboxes into array
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I was expecting true Array from $.map. Thanks for the solution, it works.
– if __name__ is None
Apr 23 '13 at 15:16
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Java: How to set Precision for double value? [duplicate]
..._UP).doubleValue();--- you get 2.94577794667E8. The output looks different from your requirement.
– Khanna111
Jan 5 '17 at 22:39
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Can constructors throw exceptions in Java?
...rtially initialized and if non-final, subject to attack.
The following is from the Secure Coding Guidelines 2.0.
Partially initialized instances of a non-final class can be accessed via a finalizer attack. The attacker overrides the protected finalize method in a subclass, and attempts to creat...
Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
...dically, I get this error message when trying to access the database, both from the CLI and from loading a page on the server:
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Calling Java varargs method with single null argument?
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@ArunKumar asList() is a static import from the java.util.Arrays class. I just assumed it was obvious. Although now that I'm thinking about it, I probably should have just used Arrays.toString() since the only reason it gets converted to a List is so it will print...
Why do we use $rootScope.$broadcast in AngularJS?
...ent for example)
!!! One thing to not do however is to use $rootScope.$on from a controller. $rootScope is the application, when your controller is destroyed that event listener will still exist, and when your controller will be created again, it will just pile up more event listeners. (So one broa...
Named regular expression group “(?Pregexp)”: what does “P” stand for?
...mphasis mine]:
Subject: Claiming (?P...) regex syntax extensions
From: Guido van Rossum (gui...@CNRI.Reston.Va.US)
Date: Dec 10, 1997 3:36:19 pm
I have an unusual request for the Perl developers (those that develop
the Perl language). I hope this (perl5-porters) is the right l...
How do I capture the output of a script if it is being ran by the task scheduler?
... nice, no wrapper required, works great, and also logs output from child powershell scripts that are called from the task-scheduler-triggered bat/cmd Thanks!
– Jonesome Reinstate Monica
Mar 3 '16 at 19:28
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