Tutorial by Examples: en

A common mistake is to forget surrounding compound function arguments with parentheses, leading to type errors. # string_of_int 1+1;; Error: This expression has type string but an expression was expected of type int This is because of the precedence. In fact, the above evaluates to # (string...

Generic type parameters are commonly defined at the class or interface level, but methods and (rarely) constructors also support declaring type parameters bound to the scope of a single method call. class Utility // no generics at the class level { @SafeVarargs public static <T> T ...

Note: The output.library and name (in DllPlugin) must be the same. const path = require('path'); const webpack = require('webpack'); const ExtractTextPlugin = require('extract-text-webpack-plugin'); const extractCSS = new ExtractTextPlugin('vendor.css'); const isDevelopment = process.env.NODE_E...

Note: manifest (in DllReferencePlugin) should reference path (defined in DllPlugin) const webpack = require('webpack'); const path = require('path'); const isDevelopment = process.env.NODE_ENV !== 'production'; const ExtractTextPlugin = require('extract-text-webpack-plugin'); const extractCSS...

Starting JShell Before trying to start JShell, make sure your JAVA_HOME environment variable points to a JDK 9 installation. To start JShell, run the following command: $ jshell If all goes well, you should see a jshell> prompt. Exiting JShell To exit JShell, run the following command from...

For this example, we will used 4 bodies and will show only the last 8 bits of the bit masks for simplicity. The 4 bodies are 3 SKSpriteNodes, each with a physics body and a boundary: let edge = frame.insetBy(dx: 0, dy: 0) physicsBody = SKPhysicsBody(edgeLoopFrom: edge) Note that the 'ed...

import SpriteKit import UIKit protocol StackViewDelegate: class { func didTapOnView(at index: Int) } class GameMenuView: UIStackView { weak var delegate: StackViewDelegate? override init(frame: CGRect) { super.init(frame: frame) self.axis = .vertical sel...

In the JNDI declaration you may want to encrypt the username and password. You have to implement a custom datasource factory in order to be able to decrypt the credentials. In server.xml replace factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" by factory="cypher.MyCustomDataS...

To create a customization plugin, you simply create a class derived from CustomizationPlug and package it into customization. While the system is publishing customization project, it will execute the OnPublished and UpdateDatabase methods implemented in your customization plugin only within the curr...

I won't repeat it all here: "Application Default Credentials provide a simple way to get authorization credentials for use calling Google APIs." If you can use Application Default Credentials, do. There is an extra step you will need to perform the before first using Application Default ...

Interceptors are registered like regular components in Windsor. Like other components, they can depend on another components. With following service for validating credentials: public interface ICredentialsVerifier { bool IsAuthorizedForService(NetworkCredential credentials); } public cl...

<# .SYNOPSIS Gets the content of an INI file. .DESCRIPTION Gets the content of an INI file and returns it as a hashtable. .INPUTS System.String .OUTPUTS System.Collections.Hashtable .PARAMETER FilePath Specifies the path to the input INI file. .EXAMPLE ...

<# .SYNOPSIS Reads a CSV file and filters it. .DESCRIPTION The ReadUsersCsv.ps1 script reads a CSV file and filters it on the 'UserName' column. .PARAMETER Path Specifies the path of the CSV input file. .INPUTS None. You cannot pipe objects to ReadUsersCsv.ps1. ...

I won't repeat it all here: "Application Default Credentials provide a simple way to get authorization credentials for use calling Google APIs." If you can use Application Default Credentials, do. There is an extra step you will need to perform the before first using Application Default ...

A binary tree is BST if it satisfies any one of the following condition: It is empty It has no subtrees For every node x in the tree all the keys (if any) in the left sub tree must be less than key(x) and all the keys (if any) in the right sub tree must be greater than key(x). So a straightf...

No Mutual SSL In this example, we might use the CA File (ca.pem) that you generated during the "How to configure a ReplicaSet to support TLS/SSL?" section. We will assume that the CA file is located in your current folder. We will assume that your 3 nodes are running on mongo1:27017, mon...

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 ...

VHDL extended identifiers are delimited by backslashes (\) and can contain letters, underscores, digits, spaces and other special characters (see the Language Reference Manual for a complete definition of special characters). The sequence of characters between backslashes can be reserved words of th...

There are 2/3 options to connect components together in Talend. You should always try to use OnSubjob connectors. This saves a lot of headaches. You'll see from the examples why. What happens when you mix the connection types / What is the execution order? If OnComponent OnSubjob Keep in mi...

Docker has announced following editions: -Docker-ee (Enterprise Edition) along with Docker-ce(Community Edition) and Docker (Commercial Support) This document will help you with installation steps of Docker-ee and Docker-ce edition in CentOS Docker-ce Installation Following are steps to instal...