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How does '20 seconds' work in Scala?
...rns something that does have a seconds method, with the search constrained by the scope of your method call.
You have imported DurationInt into your scope. Since DurationInt is an implicit class with an Int parameter, its constructor defines an implicit Int => DurationInt conversion. DurationInt...
What's the difference between “Layers” and “Tiers”?
...
is discussing a way of organizing a
code into a set of layers defined by
specific function.
Physical tiers however, are only about
where the code runs. Specifically,
tiers are places where layers are
deployed and where layers run. In
other words, tiers are the physical
deployme...
How to call a parent class function from derived class function?
...ction with the same signature in the derived class you can disambiguate it by adding the base class's name followed by two colons base_class::foo(...). You should note that unlike Java and C#, C++ does not have a keyword for "the base class" (super or base) since C++ supports multiple inheritance wh...
How to make exe files from a node.js app?
...ption to port it to JSDB, which supports an easy way to create executables by simply appending resources to it.
A third quasi-solution is to keep node somewhere like C:\utils and add this folder to your PATH environment variable. Then you can create .bat files in that dir that run node + your prefe...
Creating runnable JAR with Gradle
...
Here is a one-liner solution to build one-jar by modifying the jar task. I've found this to be the most convenient. Note that you need to add configurations.runtime to bundle runtime dependencies in the single jar.
– Quazi Irfan
May...
How to make a class conform to a protocol in Swift?
...ion, you can separate the protocol conforming code out from the main class by using extension, and you do not need to add override keyword in the extension. So the equivalent of the code above will be
class CustomDataSource : NSObject{
// Configure the object...
}
extension CustomDataSource: U...
Map vs Object in JavaScript
... a prototype, so there are default keys in the map.
However, this can be bypassed using map = Object.create(null). The
keys of an Object are Strings, where they can be any value for a Map.
You can get the size of a Map easily while you have to manually keep
track of size for an Object.
...
What is the best way to deal with the NSDateFormatter locale “feechur”?
...teStyle properties - this way you're not having an explicit dateFormat set by yourself, thus falsely assuming that format will be used.
This means UI is driven by user preferences (am/pm vs 24 hour, and date strings formatted correctly to user choice - from iOS settings), whereas dates that are "c...
Is it better to return null or empty collection?
... prevents the aforementioned nonsense, and prevents your car getting egged by co-workers and users of your classes.
When talking about properties, always set your property once and forget it
public List<Foo> Foos {public get; private set;}
public Bar() { Foos = new List<Foo>(); }
In...
Create module variables in Ruby
Is there any way to create a variable in a module in Ruby that would behave similar to a class variable? What I mean by this is that it would be able to be accessed without initializing an instance of the module, but it can be changed (unlike constants in modules).
...