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Scala: What is the difference between Traversable and Iterable traits in Scala collections?
...versables don't.
A Traversable has one abstract method: foreach. When you call foreach, the collection will feed the passed function all the elements it keeps, one after the other.
On the other hand, an Iterable has as abstract method iterator, which returns an Iterator. You can call next on an It...
Instance attribute attribute_name defined outside __init__
I split up my class constructor by letting it call multiple functions, like this:
6 Answers
...
Timertask or Handler
...) {
// Do something here on the main thread
Log.d("Handlers", "Called on main thread");
// Repeat this the same runnable code block again another 2 seconds
handler.postDelayed(runnableCode, 2000);
}
};
// Start the initial runnable task by posting through the handler
hand...
Maven and adding JARs to system scope
...option) specify the proper repository (if one exists) so it can be automatically downloaded by maven
In either case, remove the <systemPath> tag from the dependency
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How can I make Visual Studio's build be very verbose?
...ild with the solution or project filename as cli argument does show the cl call with its arguments.
– Emile Vrijdags
Jul 10 '18 at 9:50
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How to check if a string starts with one of several prefixes?
...hing via regular expressions is much more expensive than raw string method calls. Exact figures I cannot give, but this is the general consensus.
– klaar
Mar 21 '16 at 15:47
a...
Why rename synthesized properties in iOS with leading underscores? [duplicate]
... dealloc];
}
@end
This actually synthesizes an instance variable on Foo called _qux, which is accessed by getter and setter messages -qux and -setQux:.
I recommend against this: it's a little messy, but there's one good reason to use the underscore; namely, to protect against accidentally direct...
Can I keep Nuget on the jQuery 1.9.x/1.x path (instead of upgrading to 2.x)?
...e 2.0+ track. I assume you'll have to switch to a new nuget package specifically written to support the 'legacy' 1.x version, or copy the script in manually each time.
In any case, I'll update this when I learn more.
Edit:
The package author has stated that both the 1.x and 2.x paths will be supp...
How do I include related model fields using Django Rest Framework?
...his can also be accomplished by using a pretty handy dandy django packaged called drf-flex-fields. We use it and it's pretty awesome. You just install it pip install drf-flex-fields, pass it through your serializer, add expandable_fields and bingo (example below). It also allows you to specify deep...
Convert UTF-8 encoded NSData to NSString
...
You could call this method
+(id)stringWithUTF8String:(const char *)bytes.
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