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@jwg there's a space between the date and time components.
– Marcelo Cantos
Dec 29 '15 at 2:16
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Why does calling a function in the Node.js REPL with )( work?
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They actually went ahead and fixed it? Awwww, pity, I'd really like to see it start a culture and become a feature in all languages. How many times have I typed )( instead of () in a hurry... :))
– geomagas
Oct ...
Variable number of arguments in C++?
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You probably shouldn't, and you can probably do what you want to do in a safer and simpler way. Technically to use variable number of arguments in C you include stdarg.h. From that you'll get the va_list type as well as three functions that opera...
Can I call an overloaded constructor from another constructor of the same class in C#?
...r: yes, using the this keyword.
Long answer: yes, using the this keyword, and here's an example.
class MyClass
{
private object someData;
public MyClass(object data)
{
this.someData = data;
}
public MyClass() : this(new object())
{
// Calls the previous constructor ...
Convert NSDate to NSString
... Don't use init with NSDateFormatter. It was removed after iOS 3.2. (And if you use a class method instead, it will autorelease and you won't have the leak problem, too.)
– zekel
Nov 8 '10 at 5:20
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How exactly does the python any() function work?
... expressions, Python no longer has to create that internal list of True(s) and False(s), the values will be generated as the any function iterates through the values generated one at a time by the generator expression. And, since any short-circuits, it will stop iterating as soon as it sees the firs...
How do you set, clear, and toggle a single bit?
How do you set, clear, and toggle a bit?
30 Answers
30
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Best way to find the intersection of multiple sets?
...e", what you are looking for is the reduce function:
from operator import and_
from functools import reduce
print(reduce(and_, [{1,2,3},{2,3,4},{3,4,5}])) # = {3}
or
print(reduce((lambda x,y: x&y), [{1,2,3},{2,3,4},{3,4,5}])) # = {3}
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Naming convention for utility classes in Java
..., as that you use it consistently. Like, if you have three utility classes and you call them CustomerUtil, ProductUtils, and StoreUtility, other people trying to use your classes are going to constantly get confused and type CustomerUtils by mistake, have to look it up, curse you a few times, etc. (...
Design Patterns: Factory vs Factory method vs Abstract Factory
...uctor".
Let's say you want to be able to create two kinds of Fruit: Apple and Orange.
Factory
Factory is "fixed", in that you have just one implementation with no subclassing. In this case, you will have a class like this:
class FruitFactory {
public Apple makeApple() {
// Code for creati...