Tutorial by Examples: io

Detailed instructions on getting twitter set up or installed.

call :FunctionX rem More code... :FunctionX rem Some code here. goto :eof This is a very simple function. Functions are in-program commands that do multiple commands at a time. Functions are made by creating a label and putting code in it, and once it is done, you add a goto :eof or exit ...

call :tohex 14 result rem More code... :tohex <innum> <outvar> set dec=%1 set outvar=%~2 rem %n and %~n are functionally identical, but %~n is slightly safer. goto :eof This takes the additional parameters from the call as if the function was a separate Batch file. Note: the ...

set var1=123456789 set var2=abcdef call :specialvars echo %var1%, %var2% rem More code... :specialvars setlocal set var1=987654321 set var2=fedcba endlocal goto :eof When inside the section setlocal , endlocal section, variables are seperate from the caller's variables, hence why %var...

@Component public class RestExceptionResolver extends ExceptionHandlerExceptionResolver { @Autowired //If you have multiple handlers make this a list of handlers private RestExceptionHandler restExceptionHandler; /** * This resolver needs to be injected because it is the...

GraphQL.js GraphQL.js is a JavaScript reference implementation for GraphQL. You can install it via npm: Initialize npm in your project if you have not done so already: npm init Install GraphQL.js from npm: npm install --save graphql Example Server var { graphql, buildSchema } = require('gra...

Wanted version for C and C++ can be specified globally using respectively variables CMAKE_C_STANDARD (accepted values are 98, 99 and 11) and CMAKE_CXX_STANDARD (accepted values are 98, 11 and 14): set(CMAKE_C_STANDARD 99) set(CMAKE_CXX_STANDARD 11) These will add the needed compile options on t...

v-for can be used for iterating over an object keys (and values): HTML: <div v-for="(value, key) in object"> {{ key }} : {{ value }} </div> Script: new Vue({ el: '#repeat-object', data: { object: { FirstName: 'John', LastName: 'Doe', Ag...

USE [MyDatabase] CREATE MESSAGE TYPE [//initiator] VALIDATION = WELL_FORMED_XML; GO CREATE CONTRACT [//call/contract] ( [//initiator] SENT BY INITIATOR ) GO CREATE QUEUE InitiatorQueue; GO CREATE QUEUE TargetQueue; GO CREATE SERVICE InitiatorService ON QUEUE...

For this demonstration we will use service broker construction created in another part of this documentation. Mentioned part is named 3. Create basic service broker construction on database (single database communication). USE [MyDatabase] DECLARE @ch uniqueidentifier = NEWID() DECLARE @msg XML...

For this demonstration we will use service broker construction created in another part of this documentation. Mentioned part is called 3. Create basic service broker construction on database (single database communication). First we need to create a procedure that is able to read and process data f...

Detailed instructions on getting file set up or installed.

npm install --global yarn If you didn't have npm installed before, check there website documentation for more details. https://yarnpkg.com/en/docs/install

Almost any controller needs some external dependencies to work. Here is a way to configure a dependency object (or its factory) and pass it to a controller. Doing so will help to sustain a separation of concerns, keep code clear and testable. Say, we have an interface and its implementation that...

BeautifulSoup allows you to filter results by providing a function to find_all and similar functions. This can be useful for complex filters as well as a tool for code reuse. Basic usage Define a function that takes an element as its only argument. The function should return True if the argument m...

To illustrate how to use regr_slope(Y,X), I applied it to a real world problem. In Java, if you don't clean up memory properly, the garbage can get stuck and fill up the memory. You dump statistics every hour about memory utilization of different classes and load it into a postgres database for anal...

Content Negotiation can be defined as the process of selecting best representation for a given resource. So Content negotiation means the client and server can negotiate between them so that client can get data according to their required format. There are three points on which internet depends, ...

Define a new basic command A macro can be defined using \newcommand. For example: \newcommand{\foo}{Just foo, you see?} defines a macro \foo that expands to Just foo, you see?. It can then be used like any built-in command, for example after that definition: He said: ``\foo'' expands to He...

Basic printing std::ostream_iterator allows to print contents of an STL container to any output stream without explicit loops. The second argument of std::ostream_iterator constructor sets the delimiter. For example, the following code: std::vector<int> v = {1,2,3,4}; std::copy(v.begin(), v...

First we must edit the SSH daemon config file. Though under different Linux distributions this may be located in different directories, usually it is stored under /etc/ssh/sshd_config Use your text editor to change the values set in this file, all lines starting with # are commented out and must ha...