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What is the difference between Builder Design pattern and Factory Design pattern?
What is the difference between the Builder design pattern and the Factory design pattern?
27 Answers
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filter for complete cases in data.frame using dplyr (case-wise deletion)
...works, of course. But that is a) verbose when there are a lot of variables and b) impossible when the variable names are not known (e.g. in a function that processes any data.frame).
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Is it true that one should not use NSLog() on production code?
...with better functionality. Here's the one I use, it includes the file name and line number to make it easier to track down log statements.
#define DEBUG_MODE
#ifdef DEBUG_MODE
#define DebugLog( s, ... ) NSLog( @"<%p %@:(%d)> %@", self, [[NSString stringWithUTF8String:__FILE__] lastPathCo...
NULL vs nullptr (Why was it replaced?) [duplicate]
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@Cheersandhth.-Alf I have no idea how to respond to this other than the fact that I knew what I was asking and this was the easiest to understand explanation.
– Riptyde4
Dec 11 '13 at 3:17
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Centering floating divs within another div
I've searched other questions and, while this problem seems similar to a couple of others, nothing I've seen so far seems to address the issue that I'm having.
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In Python, how do I determine if an object is iterable?
... in our code as well for this purpose, but I've lately started to get more and more annoyed by objects which only have __getitem__ being considered iterable. There are valid reasons to have __getitem__ in a non-iterable object and with them the above code doesn't work well. As a real life example we...
LINQ query to return a Dictionary
...ction of MyClass that I'd like to query using LINQ to get distinct values, and get back a Dictionary as the result, but I can't figure out how I can do it any simpler than I'm doing below. What would some cleaner code be that I can use to get the Dictionary as my result?
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Check if a row exists, otherwise insert
...erbook a flight, as it will insert a new row when there are 10 tickets max and you are booking 20.
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Command line progress bar in Java
I have a Java program running in command line mode.
I would like to display a progress bar, showing the percentage of job done.
The same kind of progress bar you would see using wget under unix.
Is this possible?
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What is a typedef enum in Objective-C?
I don't think I fundamentally understand what an enum is, and when to use it.
13 Answers
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