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Best way to test for a variable's existence in PHP; isset() is clearly broken
...bitrary code used as a fallback for nonexistent variables, that can return whatever it wants regardless of whether any relevant data was ever stored.
– Brilliand
Apr 17 '17 at 19:35
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postgresql port confusion 5433 or 5432?
...most installers will choose the next free port, usually 5433.
You can see what is actually running using the netstat tool (available on OS X, Windows, and Linux, with command line syntax varying across all three).
This is further complicated on Mac OS X systems by the horrible mess of different Po...
How to make a SIMPLE C++ Makefile
...e
An introductory discussion of make, and how to write a simple makefile
What is Make? And Why Should I Care?
The tool called Make is a build dependency manager. That is, it takes care of knowing what commands need to be executed in what order to take your software project from a collection of so...
I get exception when using Thread.sleep(x) or wait()
...h exception handling, threading and thread interruptions. But this will do what you want:
try {
Thread.sleep(1000); //1000 milliseconds is one second.
} catch(InterruptedException ex) {
Thread.currentThread().interrupt();
}
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Converting integer to binary in python
... with the format() function: format(6, '08b'); the function takes a value (what the {..} slot applies to) and a formatting specification (whatever you would put after the : in the formatting string).
– Martijn Pieters♦
Sep 11 '13 at 17:33
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Why should I avoid multiple inheritance in C++?
...fy the inheritance avoids the double layout described above if this is not what you want, but anyway, in my experience, you're probably doing something wrong...
In Object hierarchy, you should try to keep the hierarchy as a Tree (a node has ONE parent), not as a graph.
More about the Diamond (edit 2...
Detail change after Git pull
...es is an important part of the Git workflow. You should always be aware of what branch you're on - if you pulled changes, you want to pull them to the right branch! You can see a list of all branches, with an asterisk by the currently checked-out one, with the command git branch. The current branch ...
How do I update an entity using spring-data-jpa?
...t is also called save, because it it supposed to save the object no matter what state it is in - it is going to perform an update or insert which is equal to save state.
– Eugene
Aug 9 '12 at 12:29
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check if a std::vector contains a certain object? [duplicate]
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what if x is the last element in v?
– David Carpenter
Dec 5 '12 at 1:38
93
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How do I set default terminal to terminator? [closed]
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Maybe your window manager is overriding the defaults. What's your window manager?
– devnull
May 29 '13 at 10:19
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