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Can a C# class inherit attributes from its interface?
...t the question is about inheriting attributes from an interface not from a base class.
– Rune Grimstad
Feb 12 '09 at 11:00
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Can unit testing be successfully added into an existing production project? If so, how and is it wor
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I've introduced unit tests to code bases that did not have it previously. The last big project I was involved with where I did this the product was already in production with zero unit tests when I arrived to the team. When I left - 2 years later - we had 4500...
Does delete on a pointer to a subclass call the base class destructor?
...
B *pD = new D();
delete pD;
The destructor will be called only if your base class has the virtual keyword.
Then if you did not have a virtual destructor only ~B() would be called. But since you have a virtual destructor, first ~D() will be called, then ~B().
No members of B or D allocated on...
Using helpers in model: how do I include helper dependencies?
...s-html-input , I'm cleaning up the input in the model before saving to database, using the before_validate callback.
6 Answ...
How to convert an int to string in C?
...hmela
* Released under GPLv3.
*/
char* itoa(int value, char* result, int base) {
// check that the base if valid
if (base < 2 || base > 36) { *result = '\0'; return result; }
char* ptr = result, *ptr1 = result, tmp_char;
int tmp_value;
do {
tmp_value = value;
...
What is the difference between OpenID and SAML?
...ce which is responsible for the authentication. On the other hand, SAML is based on an explicit trust between your site and the identity provider so it's rather uncommon to accept credentials from an unknown site.
OpenID identities are easy to get around the net. As a developer you could then just ...
Polymorphism vs Overriding vs Overloading
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The clearest way to express polymorphism is via an abstract base class (or interface)
public abstract class Human{
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public abstract void goPee();
}
This class is abstract because the goPee() method is not definable for Humans. It is only definable for the subclasses Male ...
Javascript : natural sort of alphanumerical strings
...smartly recognize numbers. You can do case-insensitive using sensitivity: 'base'. Tested in Chrome, Firefox, and IE11.
Here's an example. It returns 1, meaning 10 goes after 2:
'10'.localeCompare('2', undefined, {numeric: true, sensitivity: 'base'})
For performance when sorting large numbers of ...
Why are hexadecimal numbers prefixed with 0x?
...identifier/reserved word). Something is still needed to specify the number base: the x is an arbitrary choice.
Long story: In the 60's, the prevalent programming number systems were decimal and octal — mainframes had 12, 24 or 36 bits per byte, which is nicely divisible by 3 = log2(8).
The BCPL ...
SQLAlchemy default DateTime
...lumn, Integer, DateTime
from sqlalchemy.ext.declarative import declarative_base
Base = declarative_base()
class Test(Base):
__tablename__ = 'test'
id = Column(Integer, primary_key=True)
created_date = Column(DateTime, default=datetime.datetime.utcnow)
...