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CentOS versions 2 - 5 CentOS version 7 CentOS 7 is fully based on RedHat the detail documentation, examples and system administration guides are located here:CentOS 7 full documention

In GraphQL the Schema defines the root execution queries and mutations as well as the types for your data. Schema Object Type The Person type has two fields, one is a standard Scalar type and the other represents a relationship to a list of other Person types that are 'friends'. Linking other type...

To illustrate this, here is a function that has 3 different "wrong" behaviors the parameter is completely stupid: we use a user-defined expression the parameter has a typo: we use Oracle standard NO_DATA_FOUND error another, but not handled case Feel free to adapt it to your standa...

Signals can have a default handler. All you need to do is to give it a body when you declare it. public class Emitter : Object { public signal void my_signal () { print ("Hello from the default handler!\n"); } } This handler will always be called after the connected...

class Monad m where return :: a -> m a (>>=) :: m a -> (a -> m b) -> m b The most important function for dealing with monads is the bind operator >>=: (>>=) :: m a -> (a -> m b) -> m b Think of m a as "an action with an a result". ...

Firstly it's important to note that when a new socket is created it is assigned a unique Id which is retrieved by calling socket.id. This id can then be stored within a user object and we can assign an identifier such as a username which has been used in this example to retrieve user objects. /** ...

This code implements a version of std::async, but it behaves as if async were always called with the deferred launch policy. This function also does not have async's special future behavior; the returned future can be destroyed without ever acquiring its value. template<typename F> auto asyn...

With OptionsParser, it's really easy to set up default values. Just pre-populate the hash you store the options in: options = { :directory => ENV['HOME'] } When you define the parser, it will overwrite the default if a user provide a value: OptionParser.new do |opts| opts.on("-d&...

When creating a std::unique_lock, there are three different locking strategies to choose from: std::try_to_lock, std::defer_lock and std::adopt_lock std::try_to_lock allows for trying a lock without blocking: { std::atomic_int temp {0}; std::mutex _mutex; std::thread t( [&...

class Person { constructor(firstname, lastname) { this._firstname = firstname; this._lastname = lastname; } get firstname() { return this._firstname; } set firstname(name) { this._firstname = name; } get lastname() { return this._lastname; } ...

(function(){ var hashMap = {}; function isAnagram (str1, str2) { if(str1.length !== str2.length){ return false; } // Create hash map of str1 character and increase value one (+1). createStr1HashMap(str1); /...

Creating a LUIS Model requires little to no programming experience. However, you need to be familiar with 2 important terms that will be used extensively. Intents - These are how you identify functions that need to be executed when the user types in something. Eg - An intent named Hi will identif...

4.4 Defaults ... ... The default Size depends on the type. For integer it is 8. For float it is 64. For binary it is the size of the specified binary: 1> Bin = << 17/integer, 3.2/float, <<97, 98, 99>>/binary >>. <<17,64,9,153,153,153,153,153,154,97,98,99>...

Clarification of Erlang doc on Bit Syntax: 4.4 Defaults [Beginning omitted: <<3.14>> isn't even legal syntax.] The default Size depends on the type. For integer it is 8. For float it is 64. For binary it is the actual size of the specified binary: 1> Bin = << 17/integ...

Create a console application. Install EntityFramework nuget package by running Install-Package EntityFramework in "Package Manager Console" Add your connection string in app.config file , It's important to include providerName="System.Data.SqlClient" in your connection. Cre...

The schema is an object that defines and describes the property or properties of the component. The schema’s keys are the names of the property, and the schema’s values define the types and values of the property (in case of a multi-property component): Defining schema in your component AFRAME.reg...

By default, A-Frame scenes inject default lighting, an ambient light and a directional light. These default lights are visible in the DOM with the data-aframe-default-light attribute. Whenever we add any lights, A-Frame removes the default lights from the scene. <!-- Default lighting injected by...

If you want to have a placeholder that may be omitted, you can give it a default value: Using YAML: # app/config/routing.yml blog_list: path: /blog/{page} defaults: { _controller: AppBundle:Blog:list, page: 1 } requirements: page: '\d+' Using Annotations: // src/...

It's really easy to define the functions. Function GetAreaOfARectangle(ByVal Edge1 As Integer, ByVal Edge2 As Integer) As Integer Return Edge1 * Edge2 End Function Dim Area As Integer = GetAreaOfARectangle(5, 8) Console.Writeline(Area) 'Output: 40

Function Age(ByVal YourAge As Integer) As String Select Case YourAge Case Is < 18 Return("You are younger than 18! You are teen!") Case 18 to 64 Return("You are older than 18 but younger than 65! You are adult!") Cas...