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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
I usually end up trying every combination until it compiles. Can somebody explain what I should use where?
3 Answers
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How to interpret API documentation function parameters?
...there a standard to interpret the syntax of function interfaces in API documentations and if yes, how is it defined?
4 Answ...
GroupBy pandas DataFrame and select most common value
I have a data frame with three string columns. I know that the only one value in the 3rd column is valid for every combination of the first two. To clean the data I have to group by data frame by first two columns and select most common value of the third column for each combination.
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Ignore mouse interaction on overlay image
I have a menu bar with hover effects, and now I want to place a transparent image with a circle and a "handdrawn" text over one of the menu items. If I use absolute positioning to place the overlay image above the menu item, the user will not be able to click the button and the hover effect will not...
What is the difference between ? and Object in Java generics?
I'm using Eclipse to help me clean up some code to use Java generics properly. Most of the time it's doing an excellent job of inferring types, but there are some cases where the inferred type has to be as generic as possible: Object. But Eclipse seems to be giving me an option to choose between a...
Auto-loading lib files in Rails 4
...ne in an initializer to autoload code in my /lib directory during development:
4 Answers
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Git push/clone to new server
I'm just learning Git and there is something I can't work out. After creating and using a git repository locally on my Mac, can I push a copy to another server somewhere else? I am behind a firewall so unfortunately I can't run git clone from the other machine.
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How can I access an internal class from an external assembly?
Having an assembly which I cannot modify (vendor-supplied) which have a method returning an object type but is really of an internal type.
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How do I make an attributed string using Swift?
...lor.yellow ]
let myAttribute = [ NSAttributedString.Key.font: UIFont(name: "Chalkduster", size: 18.0)! ]
let myAttribute = [ NSAttributedString.Key.underlineStyle: NSUnderlineStyle.single.rawValue ]
let myShadow = NSShadow()
myShadow.shadowBlurRadius = 3
myShadow.shadowOffset = CGSize(wi...
Cartesian product of x and y array points into single array of 2D points
...of this approach is that it produces consistent output for arrays of the same size. The meshgrid + dstack approach, while faster in some cases, can lead to bugs if you expect the cartesian product to be constructed in the same order for arrays of the same size.
– tlnagy
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