This is an example of how to use the generic type TFood inside Eat method on the class Animal
public interface IFood
{
void EatenBy(Animal animal);
}
public class Grass: IFood
{
public void EatenBy(Animal animal)
{
Console.WriteLine("Grass was eaten by: {0}",...
arr = np.arange(7)
print(arr)
# Out: array([0, 1, 2, 3, 4, 5, 6])
Comparison with a scalar returns a boolean array:
arr > 4
# Out: array([False, False, False, False, False, True, True], dtype=bool)
This array can be used in indexing to select only the numbers greater than 4:
arr[arr&...
Along with classic way of route definition MVC WEB API 2 and then MVC 5 frameworks introduced Attribute routing:
public class RouteConfig
{
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
// This...
Draw samples from a normal (gaussian) distribution
# Generate 5 random numbers from a standard normal distribution
# (mean = 0, standard deviation = 1)
np.random.randn(5)
# Out: array([-0.84423086, 0.70564081, -0.39878617, -0.82719653, -0.4157447 ])
# This result can also be achieved with t...
Install
npm is bundled with Node.js, so if you install Node.js you'll automatically have npm installed too. You can choose between a Current and a LTS version
Windows
For Microsoft Windows you can download a MSI installer from https://nodejs.org/en/download/.
OS X
For Apple OS X you can downloa...
.htaccess can be used to set a custom error pages that matches the theme of your website instead of seeing a white error page with black techno-babble when users end up on at a page with an error server response code. The error page can be any browser parseable file, including (But not limited to)...
In the condition of the for and while loops, it's also permitted to declare an object. This object will be considered to be in scope until the end of the loop, and will persist through each iteration of the loop:
for (int i = 0; i < 5; ++i) {
do_something(i);
}
// i is no longer in scope...
Drush status
drush status
This will give you an overview of your Drupal site. Version, URI, database location, file paths, default theme etc. If you use this command and you do not see this information, it means you are in a wrong folder and Drush does not know which Drupal site you are referrin...
The following method computes the Nth Fibonacci number using recursion.
public int fib(final int n) {
if (n > 2) {
return fib(n - 2) + fib(n - 1);
}
return 1;
}
The method implements a base case (n <= 2) and a recursive case (n>2). This illustrates the use of re...
Overload resolution partitions the cost of passing an argument to a parameter into one of four different categorizes, called "sequences". Each sequence may include zero, one or several conversions
Standard conversion sequence
void f(int a); f(42);
User defined conversion seque...
If your class doesn't implement a specific overloaded operator for the argument types provided, it should return NotImplemented (note that this is a special constant, not the same as NotImplementedError). This will allow Python to fall back to trying other methods to make the operation work:
When...
While
The most trivial loop type. Only drawback is there is no intrinsic clue to know where you are in the loop.
/// loop while the condition satisfies
while(condition)
{
/// do something
}
Do
Similar to while, but the condition is evaluated at the end of the loop instead of the beginn...
A factory function is simply a function that returns an object.
Factory functions do not require the use of the new keyword, but can still be used to initialize an object, like a constructor.
Often, factory functions are used as API wrappers, like in the cases of jQuery and moment.js, so users do ...
