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How to erase the file contents of text file in Python?
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#include<fstream> and then std::ofstream("file.txt"); about as short as in Python. :)
– wilhelmtell
May 4 '10 at 21:44
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How can I listen to the form submit event in javascript?
I wanna write my own form validation javascript library and I've been looking on google how to detect if a submit button is clicked but all I found is code where you have to use onClick on onSubmit="function()" in html.
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How to get the IP address of the server on which my C# application is running on?
I am running a server, and I want to display my own IP address.
26 Answers
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What is the 'cls' variable used for in Python classes?
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The distinction between "self" and "cls" is defined in PEP 8 . As Adrien said, this is not a mandatory. It's a coding style. PEP 8 says:
Function and method arguments:
Always use self for the first argument to instance methods.
Always use cls for the firs...
Where does Jenkins store configuration files for the jobs it runs?
...itself is kept on an EC2 machine - one that might need to be taken offline and brought back on an entirely different EC2 instance at any point. We have a bunch of Puppet manifests allowing us to easily reinstall the software on the EC2 instance, but custom configuration files, like the ones for the ...
TextView Marquee not working [duplicate]
I have tried to use marquee and its not working
here is my code, please let me know where im going wrong
21 Answers
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ReadOnlyCollection or IEnumerable for exposing member collections?
...s.Immutable package, change your field type to be an immutable collection, and then expose that directly - assuming Foo itself is immutable, of course.
Updated answer to address the question more directly
Is there any reason to expose an internal collection as a ReadOnlyCollection rather than a...
How can I get the domain name of my site within a Django template?
... current site from within a Django template? I've tried looking in the tag and filters but nothing there.
16 Answers
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List files recursively in Linux CLI with path relative to the current directory
... answered Oct 29 '08 at 3:34
Andru LuvisiAndru Luvisi
21.4k66 gold badges4747 silver badges6161 bronze badges
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How do I include negative decimal numbers in this regular expression?
...\d*(\.\d+)?$
I verified it in Rubular with these values:
10.00
-10.00
and both matched as expected.
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