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Passing a method as a parameter in Ruby
.... Therefor I try to implement the algorithms (given in Python) from the book "Programming Collective Intelligence" Ruby.
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What does the “@” symbol do in Powershell?
...al in those cases. However, for associative arrays, the @ is required:
@{"Key"="Value";"Key2"="Value2"}
Officially, @ is the "array operator." You can read more about it in the documentation that installed along with PowerShell, or in a book like "Windows PowerShell: TFM," which I co-authored.
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Last iteration of enhanced for loop in java
... a way to determine if the loop is iterating for the last time. My code looks something like this:
21 Answers
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Converting an int to std::string
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Yochai TimmerYochai Timmer
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Converting an integer to a hexadecimal string in Ruby
...Num were unified in the Integer class.
If you are using an older ruby check the documentation of FixNum#to_s and BigNum#to_s
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Calculate total seconds in PHP DateInterval
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BenBen
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Are there strongly-typed collections in Objective-C?
...Test
-(void)genericMethod:(id)object {}
@end
Objective-C will behave like it did before with compiler warnings.
GenericsTest<NSString*>* test = [GenericsTest new];
[test genericMethod:@"string"];
[test genericMethod:@1]; // Warning: Incompatible pointer types sending 'NSNumber *' to para...
List changes unexpectedly after assignment. How do I clone or copy it to prevent this?
... slice it:
new_list = old_list[:]
Alex Martelli's opinion (at least back in 2007) about this is, that it is a weird syntax and it does not make sense to use it ever. ;) (In his opinion, the next one is more readable).
You can use the built in list() function:
new_list = list(old_list)
You can ...
how do I make a single legend for many subplots with matplotlib?
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This is indeed a much more useful answer! It worked just like that in a more complicated case for me.
– gmaravel
Jun 19 '18 at 9:02
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Remove rows with all or some NAs (missing values) in data.frame
I'd like to remove the lines in this data frame that:
16 Answers
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