Tutorial by Examples: g

The C99 and C11 standards specify the following length modifiers for printf(); their meanings are: ModifierModifiesApplies tohhd, i, o, u, x, or Xchar, signed char or unsigned charhd, i, o, u, x, or Xshort int or unsigned short intld, i, o, u, x, or Xlong int or unsigned long intla, A, e, E, f, F, ...

Gin is a web framework written in Golang. It features a martini-like API with much better performance, up to 40 times faster. If you need performance and good productivity, you will love Gin. There will be 8 packages + main.go controllers core libs middlewares public routers services...

Animation below shows what is happening when you use IDataInput interface methods to access data form ByteArray and other classes which implement this interface.

There is a way to simplify defining autolayout for views using VFL. It may seem hard at first, but it is actually really easy to use. Some definitions first: | represents superview H: or V: represent current orientation - horizontal or vertical view names should be enclosed in square brackets ...

Checkpointing configuration is done in two steps. First, you need to choose a backend. Then, you can specify the interval and mode of the checkpoints in a per-application basis. Backends Available backends Where the checkpoints are stored depends on the configured backend: MemoryStateBackend...

The code Here is a simple flink application using a stateful mapper with an Integer managed state. You can play with the checkpointEnable, checkpointInterval and checkpointMode variables to see their effect: public class CheckpointExample { private static Logger LOG = LoggerFactory.getLogge...

import Foundation enum Breed: String { case bulldog = "Bulldog" case doberman = "Doberman" case labrador = "Labrador" } struct Dog { let name: String let breed: String let age: Int }

import Foundation protocol DoggyView: NSObjectProtocol { func startLoading() func finishLoading() func setDoggies(_ doggies: [DoggyViewData]) func setEmpty() }

import Foundation typealias Result = ([Dog]) -> Void class DoggyService { func deliverDoggies(_ result: @escaping Result) { let firstDoggy = Dog(name: "Alfred", breed: Breed.labrador.rawValue, age: 1) let secondDoggy = Dog(name: "Vinny&quot...

import Foundation class DoggyPresenter { // MARK: - Private fileprivate let dogService: DoggyService weak fileprivate var dogView: DoggyView? init(dogService: DoggyService){ self.dogService = dogService } func attachView(_ attach: Bool, view: DoggyView...

import UIKit class DoggyListViewController: UIViewController, UITableViewDataSource { @IBOutlet weak var emptyView: UIView? @IBOutlet weak var tableView: UITableView? @IBOutlet weak var spinner: UIActivityIndicatorView? fileprivate let dogPresenter = DoggyPresenter(dogSe...

You'll often want to assign something to an object if it is None, indicating it has not been assigned. We'll use aDate. The simplest way to do this is to use the is None test. if aDate is None: aDate=datetime.date.today() (Note that it is more Pythonic to say is None instead of == None.) ...

It is very common for C functions to accept pointers to other functions as arguments. Most popular example is setting an action to be executed when a button is clicked in some GUI toolkit library. It is possible to pass Haskell functions as C callbacks. To call this C function: void event_callback...

In this example, we will try to find JavaScript data which containing backgroundColor:'#FFF'. Then, we will change value of backgroundColor '#FFF' ⇨ '#ddd'. This code uses getWholeData() and setWholeData() methods to manipulate JavaScript data. Alternatively, html() method can be used to get data of...

Run-time memory management with Rc can be very useful, but it can also be difficult to wrap one's head around, especially if your code is very complex and a single instance is referenced by tens or even hundreds of other types in many scopes. Writing a Drop trait that includes println!("Droppi...

A SIMPLE TEMPLATE Let’s start with a very simple template that shows our name and our favorite thing: <div> Hello my name is {{name}} and I like {{thing}} quite a lot. </div> {}: RENDERING To render a value, we can use the standard double-curly syntax: My name is {{name}} P...

Processing provides the method triangle in order to draw a triangle. The code below draws a nearly equilateral triangle of 25 pixels between each defining point. void setup() { size(500, 500); background(0); } void draw() { triangle(0, 0, 25, 0, 12, 12); } The signature of tria...

Start with a properly configured gradle project. In your project-local (not top-level) build.gradle append extensions plugin declaration below your Kotlin plugin, on top-level indentation level. buildscript { ... } apply plugin: "com.android.application" ... apply plugin: &quo...

Assuming we have an activity with an example layout called activity_main.xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layou...

a simple yet very useful command: :g/ending/m$ moves lines containing ending to the end of the buffer. m means move $ means end of buffer, while 0 means beginning of buffer.