Tutorial by Examples: nd

adb devices Is your phone displaying? If not, enable developer mode on your phone, and connect it by USB. adb reverse tcp:8081 tcp:8081 : In order to link correctly your phone and that React-Native recognize him during build. (NOTE:Android Version 5 or above.) react-native run-andr...

Bounded type parameters allow you to set restrictions on generic type arguments: class SomeClass { } class Demo<T extends SomeClass> { } But a type parameter can only bind to a single class type. An interface type can be bound to a type that already had a binding. This is achieve...

The PCRE-compliant PCRE_DOLLAR_ENDONLY modifier that makes the $ anchor match at the very end of the string (excluding the position before the final newline in the string). /^\d+$/D is equal to /^\d+\z/ and matches a whole string that consists of 1 or more digits and will not match "123...

With the bind command it is possible to define custom key bindings. The next example bind an Alt + w to >/dev/null 2>&1: bind '"\ew"':"\" >/dev/null 2>&1\"" If you want to execute the line immediately add \C-m (Enter) to it: bind '"\ew&quo...

When a Java virtual machine starts, it needs to know how big to make the Heap, and the default size for thread stacks. These can be specified using command-line options on the java command. For versions of Java prior to Java 8, you can also specify the size of the PermGen region of the Heap. Note...

Reading invalid UTF-8 When reading UTF-8 encoded data, it is important to be aware of the fact the UTF-8 encoded data can be invalid or malformed. Such data should usually not be accepted by your program (unless you know what you are doing). When unexpectedly encountering malformed data, different ...

Objective C NSURL *url = [NSURL URLWithString:@"YOUR URL"]; AVPlayer *player = [AVPlayer playerWithURL:videoURL]; AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:player]; playerLayer.frame = self.view.bounds; [self.view.layer addSublayer:playerLayer]; [player play];...

NSMutableDictionary *attributesDictionary = [NSMutableDictionary dictionary]; [attributesDictionary setObject:[UIFont systemFontOfSize:14] forKey:NSFontAttributeName]; //[attributesDictionary setObject:[UIColor redColor] forKey:NSForegroundColorAttributeName]; NSMutableAttributedString *attri...

To create a Swift Package, open a Terminal then create an empty folder: mkdir AwesomeProject cd AwesomeProject And init a Git repository: git init Then create the package itself. One could create the package structure manually but there's a simple way using the CLI command. If you want to ...

Darken #demo { @refcolor: #f0b9b8; background: @refcolor; border: 1px solid darken(@refcolor, 25%); } The above code makes use of the darken() function to set the border color as a shade that is 25% darker than the reference color (which is also the background color). Less compiler ca...

lessc [options] <source> [destination] The above command is used to compile Less files in the command line. Options are the various settings that the compiler should use either during compilation or after compilation. Options include -x or --compress for compressing or minifying the output ...

When deriving Serialize and Deserialize implementations for structs with generic type parameters, most of the time Serde is able to infer the correct trait bounds without help from the programmer. It uses several heuristics to guess the right bound, but most importantly it puts a bound of T: Seriali...

Those that are using TortioseGit UI click Right Mouse on the file (or folder) you want to ignore -> TortoiseGit -> Delete and add to ignore list, here you can choose to ignore all files of that type or this specific file -> dialog will pop out Click Ok and you should be done.

If we have a Model as following, from django.db import models from django.contrib.auth.models import User class UserModuleProfile(models.Model): user = models.OneToOneField(User) expired = models.DateTimeField() admin = models.BooleanField(default=False) employee_id = models...

CoffeeScript provides a basic class structure that allows you to name your class, set the superclass, assign prototypal properties, and define the constructor, in a single assignable expression. Small example below: class Animal constructor: (@name) -> move: (meters) -> alert @n...

Functions are found by first collecting a set of "associated classes" and "associated namespaces" that include one ore more of the following, depending on the argument type T. First, let us show the rules for classes, enumeration and class template specialization names. If T i...

This example demonstrates how you can respond to a button click by performing some work on a worker thread and then update the user interface to indicate completion void MyButton_OnClick(object sender, EventArgs args) { Task.Run(() => // Schedule work using the thread pool { ...

<TextBlock x:Name="MyControl" Text="Hello, world!" /> var rtb = new RenderTargetBitmap(); await rtb.RenderAsync(MyControl); // Render control to RenderTargetBitmap // Get pixels from RTB IBuffer pixelBuffer = await rtb.GetPixelsAsync(); byte[] pixels = ...

public static async Task<WriteableBitmap> RenderUIElement(UIElement element) { var bitmap = new RenderTargetBitmap(); await bitmap.RenderAsync(element); var pixelBuffer = await bitmap.GetPixelsAsync(); var pixels = pixelBuffer.ToArray(); var writeableBitmap = new W...

Copy and Paste following class in your package: public class MLRoundedImageView extends ImageView { public MLRoundedImageView(Context context) { super(context); } public MLRoundedImageView(Context context, AttributeSet attrs) { super(context, attrs); } ...