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Install from npm chai, chai-immutable, and ts-node npm install --save-dev chai chai-immutable ts-node Install types for mocha and chai npm install --save-dev @types/mocha @types/chai Write simple test file: import {List, Set} from 'immutable'; import * as chai from 'cha...

CREATE OR REPLACE TRIGGER CORE_MANUAL_BIUR BEFORE INSERT OR UPDATE ON CORE_MANUAL FOR EACH ROW BEGIN if inserting then -- only set the current date if it is not specified if :new.created is null then :new.created := sysdate; end if; end if; -- always s...

ReactiveCocoa supports macOS 10.9+, iOS 8.0+, watchOS 2.0+, and tvOS 9.0+. Carthage If you use Carthage to manage your dependencies, simply add ReactiveCocoa to your Cartfile: github "ReactiveCocoa/ReactiveCocoa" ~> 5.0 If you use Carthage to build your dependencies, make sure you...

public async Task SetProductInactiveAsync(int productId) { using (IDbConnection con = new SqlConnection("myConnectionString")) { await con.ExecuteAsync("SetProductInactive", new { id = productId }, commandType: CommandType.StoredProcedure); ...

What is Dagger 2 ? The website describes itself as: Dagger is a fully static, compile-time dependency injection framework The library makes it easy to model dependency graphs as well as to reuse objects. Since reflection is only used at compile time as part of the annotation processing Dagger...

Fast Development process Decoupling Unit test writing Fast Development process When using dependency injection node developer can faster their development proceess because after DI there is less code conflict and easy to manage all module. Decoupling Modules becomes less couple then it i...

Though it is an obsoleted part of the XSI standard, many implementations still support multiple expressions with Boolean operators and parenthesis. The (obsolete) operators are listed below with decreasing precedence. ( expression ) expression -a expression expression -o expression Using thes...

Create simple CRUD Operation Using Serverless Framework Install Serverless framework globally npm install serverless -g Create simple Lambda Service serverless create --template aws-nodejs --path myService Go to the myService Directory it should contain serverless.yml handler.js even...

NOTES: We are going to install Magento 2 on fresh Ubuntu Server 16.04 LTS with PHP 7.0, MySQL 5.6 and Apache 2.4. 1. Setup Requirements Apache 2.2 or 2.4 with mod_rewrite module (or) Nginx >= 1.8. PHP 5.5 or later version. PHP 7.0 also supported. Required PHP-Modules – PDO/MySQL, mbstring, ...

Generators are fast coded and in many cases a slim alternative to heavy iterator-implementations. With the fast implementation comes a little lack of control when a generator should stop generating or if it should generate something else. However this can be achieved with the usage of the send() fu...

For giving short names to a data type Instead of: long long int foo; struct mystructure object; one can use /* write once */ typedef long long ll; typedef struct mystructure mystruct; /* use whenever needed */ ll foo; mystruct object; This reduces the amount of typing needed if the ...

In the following example we will be creating a table called Membership using the AWS Java SDK for DynamoDB. The table will consist of items that represent team assignments. The table will be partitioned by TeamID. Each team will have multiple members, identified by the MemberID (as a sort key). AWS...

There are several considerations when implementing Regular Expressions in Swift. let letters = "abcdefg" let pattern = "[a,b,c]" let regEx = try NSRegularExpression(pattern: pattern, options: []) let nsString = letters as NSString let matches = regEx.matches(in: letters, opt...

Patterns can be used to replace part of an input string. The example below replaces the cent symbol with the dollar symbol. var money = "¢¥€£$¥€£¢" let pattern = "¢" do { let regEx = try NSRegularExpression (pattern: pattern, options: []) let nsString = money as NSS...

Switches can switch on tuples: public typealias mdyTuple = (month: Int, day: Int, year: Int) let fredsBirthday = (month: 4, day: 3, year: 1973) switch theMDY { //You can match on a literal tuple: case (fredsBirthday): message = "\(date) \(prefix) the day Fred was born"...

Underscore is an open source functional programming utility library for JavaScript. Underscore provides many useful functions for working with arrays or collections of JavaScript objects, including filtering, sorting and querying. Node.js Make sure you have node and npm installed then type the fol...

First, you need to install pry-byebug gem. Run this command: $ gem install pry-byebug Add this line at the top of your .rb file: require 'pry-byebug' Then insert this line wherever you want a breakpoint: binding.pry A hello.rb example: require 'pry-byebug' def hello_world puts &qu...

Prerequisites: Install Firefox Install Selenium IDE addon (https://addons.mozilla.org/fr/firefox/addon/selenium-ide/) Open the plugin. A button displaying a red circle must be shown. If it's pressed, it means you can start your scenario. The plugin is recording everything you do within this F...

Install a Common Lisp implementation on the server. (E.g. sbcl, clisp, etc...) Install quicklisp on the server. Load SWANK with (ql:quickload :swank) Start the server with (swank:create-server). The default port is 4005. [On your local machine] Create a SSH tunnel with ssh -L4005:127.0.0.1:400...

If you are tired of using long commands in bash you can create your own command alias. The best way to do this is to modify (or create if it does not exist) a file called .bash_aliases in your home folder. The general syntax is: alias command_alias='actual_command' where actual_command is the c...