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Why does sudo change the PATH?
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it's annoying. period. if it could 'get you trojaned' by sudo it could get you trojaned the same without it. granted, harder, but if you are running code from the wrong place even with your regular user, then things are already bad enough.
– gcb
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Is the != check thread safe?
...blic boolean test() {
return a != a;
}
may produce true. This is the bytecode for test()
ALOAD 0
GETFIELD test/Test1.a : Ljava/lang/Object;
ALOAD 0
GETFIELD test/Test1.a : Ljava/lang/Object;
IF_ACMPEQ L1
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as we can see it loads field a to local vars twice, it's a non...
What is the difference between a port and a socket?
This was a question raised by one of the software engineers in my organisation. I'm interested in the broadest definition.
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Selenium wait until document is ready
...ed solution only waits for DOM readyState to signal complete. But Selenium by default tries to wait for those (and a little bit more) on page loads via the driver.get() and element.click() methods. They are already blocking, they wait for the page to fully load and those should be working ok.
Probl...
How to specify a editor to open crontab file? “export EDITOR=vi” does not work
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If the crontab is managed by several persons with one user, I recommend to do this in a subshell, so the default editor stays in place.
– Thomas Böhm
Dec 7 '17 at 12:21
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Django database query: How to get object by id?
...turns the identity of an object. In a majority of cases referencing things by id will do the right thing e.g. Class.objects.get(id=this_object_id) work. But that's something to consider I guess.
– Tom
Jul 28 '16 at 20:45
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What does “1 line adds whitespace errors” mean when applying a patch?
...manual explains:
What are considered whitespace errors is controlled
by core.whitespace configuration. By default, trailing whitespaces
(including lines that solely consist of whitespaces) and a space
character that is immediately followed by a tab character inside the
initial indent of ...
EJB's - when to use Remote and/or local interfaces?
...distributing EJBs on a different tier and they fixed the spec (in EJB 2.0) by introducing the concept of Local interfaces so that clients collocated in the same virtual machine with the EJB container can call EJBs using direct method invocation, totally bypassing RMI semantics (and the associated ov...
The Definitive C++ Book Guide and List
..., 2014) (updated for C++11/C++14) An introduction to programming using C++ by the creator of the language. A good read, that assumes no previous programming experience, but is not only for beginners.
Introductory, with previous programming experience
A Tour of C++ (Bjarne Stroustrup) (2nd edition...
Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED
I working with node.js by expressjs I try to store an account to session. So, i try to test to use session with code in expressjs
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