String#squish
Returns a version of the given string without leading or trailing whitespace, and combines all consecutive whitespace in the interior to single spaces. Destructive version squish! operates directly on the string instance.
Handles both ASCII and Unicode whitespace.
%{ Multi-line
...
String#pluralize
Returns of plural form of the string. Optionally takes a count parameter and returns singular form if count == 1. Also accepts a locale parameter for language-specific pluralization.
'post'.pluralize # => "posts"
'octopus'.pluralize # => "...
The 'Golden' method minimizes a unimodal function by narrowing the range in the extreme values
import numpy as np
from scipy.optimize import _minimize
from scipy import special
import matplotlib.pyplot as plt
x = np.linspace(0, 10, 500)
y = special.j0(x)
optimize.minimize_scalar(special.j0,...
Brent's method is a more complex algorithm combination of other root-finding algorithms; however, the resulting graph isn't much different from the graph generated from the golden method.
import numpy as np
import scipy.optimize as opt
from scipy import special
import matplotlib.pyplot as plt
...
Think this could example could be better but you get the gist
import numpy as np
from scipy.optimize import _minimize
from scipy import special
import matplotlib.pyplot as plt
from matplotlib import cm
from numpy.random import randn
x, y = np.mgrid[-2:2:100j, -2:2:100j]
plt.pcolor(x, y, op...
Creating a Window with OpenGL context (extension loading through GLEW):
#define GLEW_STATIC
#include <GL/glew.h>
#include <SDL2/SDL.h>
int main(int argc, char* argv[])
{
SDL_Init(SDL_INIT_VIDEO); /* Initialises Video Subsystem in SDL */
/* Setting up OpenGL version a...
Databings are essential for working with XAML. The XAML dialect for UWP apps provides a type of binding: the {x:Bind} markup extension.
Working with {Binding XXX} and {x:Bind XXX} is mostly equivalent, with the difference that the x:Bind extension works at compile time, which enables better debuggi...
This annotation ensures that only the valid integer constants that you expect are used.
The following example illustrates the steps to create an annotation:
import android.support.annotation.IntDef;
public abstract class Car {
//Define the list of accepted constants
@IntDef({MICROCA...
To setup for using Android Gradle Plugin you need many things:
java
gradle
the Android project folder structure
an Android Manifest
initial plugin setup
The easiest way to get all of them is to follow these steps:
Donwload and Install Java OpenJDK version 6 or 7 (you can use 8 with addi...
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
// If you are receiving a notification message while your app is in the background,
// this callback will no...
Note: Following instructions are written for Python 2.7 (unless specified): instructions for Python 3.x are similar.
WINDOWS
First, download the latest version of Python 2.7 from the official Website (https://www.python.org/downloads/). Version is provided as an MSI package. To install it manu...
public class ConnectSocketExample {
private int HTTP_PORT = 80;
/**
* example method to create unconnected socket
* then connect to it
* at end return connected socket
*
* @param httpHostName - endpoint host name fot socket connection
* @throws IOEx...
5.1
This Example demonstrates how to automatically assign a value to each entry in an enum list. This will prevent two enums from having the same value by mistake. NOTE: Object.freeze browser support
var testEnum = function() {
// Initializes the enumerations
var enumList = [
&q...
SpriteKit functionality can be implemented in a subclass of SKScene. For example, a game may implement the main game functionality within an SKScene subclass called GameScene.
In Swift:
import SpriteKit
class GameScene: SKScene {
override func didMoveToView(view: SKView) {
/* Co...
You can place an SKCameraNode into an SKScene to define which part of the scene is shown in the SKView. Think of the SKScene as a 2D world with a camera floating above it: the SKView will show what the camera 'sees'.
E.g. the camera could be attached to the main character's sprite to follow the act...
Chaining assignments as part of a var declaration will create global variables unintentionally.
For example:
(function foo() {
var a = b = 0;
})()
console.log('a: ' + a);
console.log('b: ' + b);
Will result in:
Uncaught ReferenceError: a is not defined
'b: 0'
In the above examp...
class SomeClass {
public function __invoke($param1, $param2) {
// put your code here
}
}
$instance = new SomeClass();
$instance('First', 'Second'); // call the __invoke() method
An object with an __invoke method can be used exactly as any other function.
The __invoke meth...
Mapping
Applying a function to all elements of an array :
array_map('strtoupper', $array);
Be aware that this is the only method of the list where the callback comes first.
Reducing (or folding)
Reducing an array to a single value :
$sum = array_reduce($numbers, function ($carry, $number) {
...
MySQL offers a number of different numeric types. These can be broken down into
GroupTypesInteger TypesINTEGER, INT, SMALLINT, TINYINT, MEDIUMINT, BIGINTFixed Point TypesDECIMAL, NUMERICFloating Point TypesFLOAT, DOUBLEBit Value TypeBIT
