To retrieve the result of a procedure call (e.g. Function or Property Get procedures), put the call on the right-hand side of an assignment:
result = ProcedureName
result = ProcedureName(argument1, argument2)
Parentheses must be present if there are parameters. If the procedure has no parameter...
The Objective-C runtime allows you to change the implementation of a method at runtime. This is called method swizzling and is often used to exchange the implementations of two methods. For example, if the methods foo and bar are exchanged, sending the message foo will now execute the implementation...
You can use the Enumerable class alongside Linq queries to convert for loops into Linq one liners.
Select Example
Opposed to doing this:
var asciiCharacters = new List<char>();
for (var x = 0; x < 256; x++)
{
asciiCharacters.Add((char)x);
}
You can do this:
var asciiCharacter...
public class Singleton
{
private readonly static Singleton instance = new Singleton();
private Singleton() { }
public static Singleton Instance => instance;
}
This implementation is thread-safe because in this case instance object is initialized in the static constructor. The ...
This thread-safe version of a singleton was necessary in the early versions of .NET where static initialization was not guaranteed to be thread-safe. In more modern versions of the framework a statically initialized singleton is usually preferred because it is very easy to make implementation mistak...
When assigning named methods to delegates, they will refer to the same underlying object if:
They are the same instance method, on the same instance of a class
They are the same static method on a class
public class Greeter
{
public void WriteInstance()
{
Console.Write...
The following syntax creates a delegate type with name NumberInOutDelegate, representing a method which takes an int and returns an int.
public delegate int NumberInOutDelegate(int input);
This can be used as follows:
public static class Program
{
static void Main()
{
Number...
The System namespace contains Func<..., TResult> delegate types with between 0 and 15 generic parameters, returning type TResult.
private void UseFunc(Func<string> func)
{
string output = func(); // Func with a single generic type parameter returns that type
Console.WriteLine...
Named methods can be assigned to delegates with matching signatures:
public static class Example
{
public static int AddOne(int input)
{
return input + 1;
}
}
Func<int,int> addOne = Example.AddOne
Example.AddOne takes an int and returns an int, its signature ...
The dynamics of the Geometric Brownian Motion (GBM) are described by the following stochastic differential equation (SDE):
I can use the exact solution to the SDE
to generate paths that follow a GBM.
Given daily parameters for a year-long simulation
mu = 0.08/250;
sigma = 0.25/sqrt(...
Leiningen
Note: If you're going to use Leiningen, you first need to download and install JDK 6 or newer.
The easiest way to get started with Clojure is to download and install Leiningen, the de facto standard tool to manage Clojure projects.
Linux:
curl https://raw.githubusercontent.com/technoma...
One of the things that can really boost your productivity while writing the code is effectively navigating the workspace. This also means making it comfortable for the moment. It's possible to achieve this by adjusting which areas of workspaces you see.
The buttons on the top of the navigation and ...
Now that the router is configured and our app knows how to handle the routes, we need to show the actual components that we configured.
To do so, configure your HTML template/file for your top-level (app) component like so:
//app.ts
import {Component} from '@angular/core';
import {Router, ROUT...
NOTE: This example is based on the 3.0.0.-beta.2 release of the @angular/router. At the time of writing, this is the latest version of the router.
To use the router, define routes in a new TypeScript file like such
//app.routes.ts
import {provideRouter} from '@angular/router';
import {Home} ...
docker rm can be used to remove a specific containers like this:
docker rm <container name or id>
To remove all containers you can use this expression:
docker rm $(docker ps -qa)
By default docker will not delete a container that is running. Any container that is running will produce a...
GitHub is a huge collection of Git repositories. In other words, you can think of GitHub as a collection of many projects!
Creating An Account
Visit GitHub's main page Here
Pick a username, enter in your email address, and pick a secure password and you're ready to go!
Useful Tools
For Git/...
Template views are fine for static page and you could use them for everything with get_context_data but it would be barely better than using function as views.
Enter ListView and DetailView
app/models.py
from django.db import models
class Pokemon(models.Model):
name = models.CharField(max...
The jQuery UI framework helps to extend and increase the User Interface controls for jQuery JavaScript library.
When you wish to use jQuery UI, you will need to add these libraries to your HTML. A quick way to start is using the Content Delivery Network available code sources:
jQuery Libraries
ht...
