Tutorial by Examples: basic

Simply add an attribute to the controller action [Route("product/{productId}/customer")] public IQueryable<Product> GetProductsByCustomer(int productId) { //action code goes here } this will be queried as /product/1/customer and productId=1 will be sent to the controll...

The yarn init command will walk you through the creation of a package.json file to configure some information about your package. This is similar to the npm init command in npm. Create and navigate to a new directory to hold your package, and then run yarn init mkdir my-package && cd my-pa...

Create your own WSMessageSender: import java.io.IOException; import java.net.HttpURLConnection; import org.springframework.ws.transport.http.HttpUrlConnectionMessageSender; import sun.misc.BASE64Encoder; public class CustomWSMessageSender extends HttpUrlConnectionMessageSender{ @Ov...

There's two ways to create a ByteBuffer, where one can be subdivided again. If you have an already existing byte[], you can "wrap" it into a ByteBuffer to simplify processing: byte[] reqBuffer = new byte[BUFFER_SIZE]; int readBytes = socketInputStream.read(reqBuffer); final ByteBuffer ...

Given a ByteBuffer instance one can write primitive-type data to it using relative and absolute put. The striking difference is that putting data using the relative method keeps track of the index the data is inserted at for you, while the absolute method always requires giving an index to put the d...

Here is a simple shortcut that runs the command upper_case when you press ctrl+u. { "keys": ["ctrl+u"], "command": "upper_case" } I've set the content of my keybindings like this, but it doesn't work! It's normal! It's because it has to be ...

Basic identifiers consist of letters, underscores and digits and must start with a letter. They are not case sensitive. Reserved words of the language cannot be basic identifiers. Examples of valid VHDL basic identifiers: A_myId90 a_MYID90 abcDEf100_1 ABCdef100_1 The two first are equivalent ...

Latest Android Studio will create & integrate a Basic Widget to your Application in 2 steps. Right on your Application ==> New ==> Widget ==> App Widget . It will show a Screen like below & fill the fields Its Done. It will create & integrate a basic HelloWorld Widget(I...

This is a very basic progress bar that only uses what is needed at the bare minimum. It would be wise to read this whole example to the end. import sys import time from PyQt5.QtWidgets import (QApplication, QDialog, QProgressBar, QPushButton) TIME_LIMIT = 100 ...

Simply add an attribute to the controller action [Route("product/{productId}/customer")] public IQueryable<Product> GetProductsByCustomer(int productId) { //action code goes here } this will be queried as /product/1/customer and productId=1 will be sent to the controll...

Let's see how we can organize the code, when the codebase is getting larger. 01. Functions fn main() { greet(); } fn greet() { println!("Hello, world!"); } 02. Modules - In the same file fn main() { greet::hello(); } mod greet { // By default, everything inside a...

This example shows how to obtain the ancestry of a component using the ClassType and ClassParent properties. It uses a button Button1: TButton and a list box ListBox1: TListBox on a form TForm1. When the user clicks the button, the name of the button’s class and the names of its parent classes are ...

For a C-style function call, e.g. plus(a, b); // Parentheses surrounding only the arguments, comma separated Then the equivalent Haskell code will be (plus a b) -- Parentheses surrounding the function and the arguments, no commas In Haskell, parentheses are not explicitly required for functi...

Given the following class: public class FinalizableObject { public FinalizableObject() { Console.WriteLine("Instance initialized"); } ~FinalizableObject() { Console.WriteLine("Instance finalized"); } } A program that create...

Rule of thumb: when garbage collection occurs, "live objects" are those still in use, while "dead objects" are those no longer used (any variable or field referencing them, if any, has gone out of scope before the collection occurs). In the following example (for convenience, Fi...

The easiest way to get up and running with vue-router is to use the version provided via CDN. HTML: <script src="https://unpkg.com/vue/dist/vue.js"></script> <script src="https://unpkg.com/vue-router/dist/vue-router.js"></script> <div id="rou...

For a class-less React component: function SomeComponent(props){ const ITEMS = ['cat', 'dog', 'rat'] function getItemsList(){ return ITEMS.map(item => <li key={item}>{item}</i>); } return ( <ul> {getItemsList()} ...

Liquid code can be categorised into objects, tags and filters. Objects Objects tell Liquid where to show content on a page. Objects and variables are denoted with double curly braces. {{ and }} <!-- input --> {{ page.title }} <!-- output --> Getting started with Liquid Tags T...

Excel has many Formulas built right in. Here are a few examples of some of the basic Formulas that might be handy to know when getting started with Excel: Important Note : The name and Syntax of these Formulas vary on the language of your Excel installation! For example this Function here : in Eng...

The following Less: .paragraph{ font-size: 12px; color: blue; background: white; } .parent{ font-size: 14px; color: black; background: green; .nestedParagraph:extend(.paragraph){ } } will compile into the following css: .paragraph, .parent .nestedParagraph { ...