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How to make a promise from setTimeout
...ions for resolving/rejecting the promise as arguments.
First, since async now has a meaning in JavaScript (even though it's only a keyword in certain contexts), I'm going to use later as the name of the function to avoid confusion.
Basic Delay
Using native promises (or a faithful polyfill) it wou...
Extending from two classes
...nterface BarInterface {
public int methodC(int i);
//...
}
And now make Foo and Bar implement the relative interfaces:
public class Foo implements FooInterface { /*...*/ }
public class Bar implements BarInterface { /*...*/ }
Now, with class FooBar, you can implement both FooInterface...
What is __init__.py for?
...make two blank files, the init.py file (with underscores) and datetime.py. Now open an interpreter, import sys, and issue sys.path.insert(0, '/path/to/datetime'), replacing that path with the path to whatever directory you just made. Now try something like from datetime import datetime;datetime.now(...
Is using Random and OrderBy a good shuffle algorithm?
...dex];
elements[swapIndex] = elements[i];
}
}
This will now only do as much work as it needs to.
Note that in both cases, you need to be careful about the instance of Random you use as:
Creating two instances of Random at roughly the same time will yield the same sequence of ra...
About Java cloneable
...
The first thing you should know about Cloneable is - don't use it.
It is very hard to implement cloning with Cloneable right, and the effort is not worth it.
Instead of that use some other options, like apache-commons SerializationUtils (deep-clone) o...
Git: How to rebase to a specific commit?
...rebasing onto, and finally applying each change in turn. I tried it again now and seemed to work just fine.
– r0hitsharma
Jan 29 '15 at 9:53
1
...
Understanding implicit in Scala
... of the reasons I stopped trying to learn Scala many years ago and am only now coming back to it. I was never sure where some (many) of the implicits were coming from in the code I was looking at.
– melston
Mar 19 '19 at 19:23
...
Greenlet Vs. Threads
...lution with multiprocessing to achieve higher throughput? 2)I still don't know why ever use threads? Can we consider them as a naive and basic implementation of concurrency in python standard library?
– Rsh
Mar 24 '13 at 8:23
...
Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...e with 10 rows based on a primary key combination (column 1 and column 2). Now, you have removed 5 rows from the table at some point of time. Now, if you try to add the same 10 rows again, while hibernate tries to persist the objects in database, 5 rows which were already removed will be added witho...
Evenly distributing n points on a sphere
... to N-1). If that is all that is confusing you, hopefully you can use that now.
(in other words, k is an array of size N that is defined before the code fragment starts, and which contains a list of the points).
Alternatively, building on the other answer here (and using Python):
> cat ll.py
f...