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Turn a string into a valid filename?
I have a string that I want to use as a filename, so I want to remove all characters that wouldn't be allowed in filenames, using Python.
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Ruby class instance variable vs. class variable
I read " When do Ruby instance variables get set? " but I'm of two minds when to use class instance variables.
7 Answers
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Recommended method for escaping HTML in Java
Is there a recommended way to escape < , > , " and & characters when outputting HTML in plain Java code? (Other than manually doing the following, that is).
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Sell me on const correctness
So why exactly is it that it's always recommended to use const as often as possible? It seems to me that using const can be more of a pain than a help in C++. But then again, I'm coming at this from the python perspective: if you don't want something to be changed, don't change it. So with that ...
Elegant way to invert a map in Scala
Learning Scala currently and needed to invert a Map to do some inverted value->key lookups. I was looking for a simple way to do this, but came up with only:
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Git mergetool with Meld on Windows
...n Linux, my favorite merge tool is Meld, and I've had no problems using or configuring it to work with Git. However, in Windows it has been a different story.
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Launching an application (.EXE) from C#?
How can I launch an application using C#?
9 Answers
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Retrieving the inherited attribute names/values using Java Reflection
I've a Java object 'ChildObj' which is extended from 'ParentObj'. Now, if it is possible to retrieve all the attribute names and values of ChildObj, including the inherited attributes too, using Java reflection mechanism?
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Should you declare methods using overloads or optional parameters in C# 4.0?
I was watching Anders' talk about C# 4.0 and sneak preview of C# 5.0 , and it got me thinking about when optional parameters are available in C# what is going to be the recommended way to declare methods that do not need all parameters specified?
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
Can I make a NSMutableArray instance where all the elements are of type SomeClass ?
11 Answers
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