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Default parameters with C++ constructors [closed]
...efault parameters, so long as the parameters make sense. Classes in the standard use them as well, which speaks in their favor.
One thing to watch out for is if you have defaults for all but one parameter, your class can be implicitly converted from that parameter type. Check out this thread for ...
Bootstrap Dropdown with Hover
... So much better than long 'full-built' solutions. Just add this and the default 'click' dropdown works on hover without extra changes.
– IamFace
Apr 13 '14 at 19:59
51
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How to import the class within the same directory or sub directory?
...es are in a subdirectory - put an __init__.py in the subdirectory as well, and then use regular import statements, with dot notation. For each level of directory, you need to add to the import path.
bin/
main.py
classes/
user.py
dir.py
So if the directory was named "class...
Run php script as daemon process
I need to run a php script as daemon process (wait for instructions and do stuff). cron job will not do it for me because actions need to be taken as soon as instruction arrives. I know PHP is not really the best option for daemon processes due to memory management issues, but due to various reasons...
Remove last character from C++ string
...is to use the function that is intended for this task, it's called erase() and the code is: st.erase(st.size()-1). This would be called a "mutating version".
– Czarek Tomczak
Jan 19 '13 at 14:46
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What does $_ mean in PowerShell?
...he current value in the pipe line, which is called $PSItem in Powershell 3 and newer.
1,2,3 | %{ write-host $_ }
or
1,2,3 | %{ write-host $PSItem }
For example in the above code the %{} block is called for every value in the array. The $_ or $PSItem variable will contain the current value...
Removing colors from output
I have some script that produces output with colors and I need to remove the ANSI codes.
13 Answers
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Creating your own header file in C
... that this code doesn't work if you try to just build it by button ("build and run" in Code::Blocks for example). It might seem obvious for you but for me it's the first time it has happened and it took me quite some time to figure out where is the problem.
– Jeyekomon
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Android: Generate random color on click?
I have an ImageView , in which I am programmaticly creating drawables and presenting them to the user. My goal is to click on said ImageView and change the drawable's color.
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How can I manually generate a .pyc file from a .py file
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You can use compileall in the terminal. The following command will go recursively into sub directories and make pyc files for all the python files it finds. The compileall module is part of the python standard library, so you don't need to install anything extra to use it. This work...