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Maximum single-sell profit
...at if we bought the stock on buyDay and sold it on sellDay , we would maximize our profit.
19 Answers
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How to prevent SIGPIPEs (or handle them properly)
... have a small server program that accepts connections on a TCP or local UNIX socket, reads a simple command and, depending on the command, sends a reply. The problem is that the client may have no interest in the answer sometimes and exits early, so writing to that socket will cause a SIGPIPE and ma...
When do I use the PHP constant “PHP_EOL”?
...newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Windows endline when executed on a unix-like system.
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Network usage top/htop on Linux
Is there a htop/top on Linux where I get to sort processes by network usage?
6 Answers
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Test if characters are in a string
I'm trying to determine if a string is a subset of another string. For example:
9 Answers
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Asynchronous Process inside a javascript for loop [duplicate]
...me time in the future and call their callbacks, the value of your loop index variable i will be at its last value for all the callbacks.
This is because the for loop does not wait for an asynchronous operation to complete before continuing on to the next iteration of the loop and because the asyn...
Linux: copy and create destination dir if it does not exist
...ly an option to cp) that creates the destination directory if it does not exist.
21 Answers
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What is a segmentation fault?
... results in a segfault
Dangling pointer points to a thing that does not exist any more, like here:
char *p = NULL;
{
char c;
p = &c;
}
// Now p is dangling
The pointer p dangles because it points to character variable c that ceased to exist after the block ended. And when you try to...
What is __init__.py for?
...and namespace packages. Regular packages are traditional packages as they existed in Python 3.2 and earlier. A regular package is typically implemented as a directory containing an __init__.py file. When a regular package is imported, this __init__.py file is implicitly executed, and the objects it ...
How to run an EXE file in PowerShell with parameters with spaces and quotes
...t evaluates the string, that is, it typically echos it to the screen, for example:
PS> "Hello World"
Hello World
If you want PowerShell to interpret the string as a command name then use the call operator (&) like so:
PS> & 'C:\Program Files\IIS\Microsoft Web Deploy\msdeploy.exe'
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