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DOSKEY macros don't work in a batch script. However, we can use a little workaround. set DOSKEYMacro=echo Hello World %DOSKEYMacro% This script can simulate the macro function. One can also use ampersands(&) to join commands, like $T in DOSKEY. If you want a relatively large "macro&qu...

Min-Heap 1 / \ 2 3 / \ / \ 4 5 6 7 The above tree is a Min-Heap since the root is the minimum among all the nodes present in the tree.The same property is followed by all the nodes in the tree. Max-Heap 7 / \ 6 5 / \ /...

There are packages that include data or are created specifically to disseminate datasets. When such a package is loaded (library(pkg)), the attached datasets become available either as R objects; or they need to be called with the data() function. Gapminder A nice dataset on the development of c...

Numerous packages are created specifically to access some databases. Using them can save a bunch of time on reading/formating the data. Eurostat Even though eurostat package has a function search_eurostat(), it does not find all the relevant datasets available. This, it's more convenient to brow...

Human Mortality Database Human Mortality Database is a project of the Max Planck Institute for Demographic Research that gathers and pre-process human mortality data for those countries, where more or less reliable statistics is available. # load required packages library(tidyverse) library(ext...

Detailed instructions on getting odoo-10 set up or installed.

Spaghetti code means a code snippet that uses many, and often confusing structures. Such as GOTOs, exceptions and inconsistent code. Examples and Solutions Example A @echo off set /a counter=0 :Loop set /a counter=%counter% + 1 echo %counter% if %counter% equ 10 goto :exit goto :Loop ...

Detailed instructions on getting url set up or installed.

Detailed instructions on getting user-interface set up or installed.

An entity represents an object of a game like a player figure or an enemy figure. Since this object does not do much without arms and legs we can add the components to this. To create this system apple has the GKEntity and GKComponent classes. Lets assume we have the following classe for the follow...

This is a good step by step guide for setting up asp net Identity and Identity server for authorization and authentication. https://docs.microsoft.com/en-us/aspnet/core/security/authentication/identity You can also follow the official docs examples and IdentityServer4 quickstart samples on Github ...

// Import the action types to recognize them import { ACTION_ERROR, ACTION_ENTITIES_LOADED, ACTION_ENTITY_CREATED } from './actions'; // Set up a default state const initialState = { error: undefined, entities: [], loading: true }; // If no state is provided, we take the defa...

Detailed instructions on getting es6-promise set up or installed.

Detailed instructions on getting office-interop set up or installed.

You can copy and paste this whole plugin to try it. The class skeleton is used from here. class-oop-ajax.cpp <?php /** * The plugin bootstrap file * * This file is read by WordPress to generate the plugin information in the plugin * Dashboard. This file defines a function that start...

In Spark, a DataFrame is a distributed collection of data organized into named columns. It is conceptually equivalent to a table in a relational database or a data frame in R/Python, but with richer optimizations under the hood. DataFrames can be constructed from a wide array of sources such as stru...

using (SPSite site = new SPSite("http://server/sites/siteCollection")) using (SPWeb web = site.OpenWeb()) { SPList list = web.Lists["Some list"]; SPQuery query = new SPQuery() { RowLimit = 100 }; do { SPListItemCollection items ...

Usecase : Login to FB account import org.openqa.selenium.WebDriver; import org.openqa.selenium.firefox.FirefoxDriver; import org.testng.annotations.BeforeClass; import org.testng.annotations.Test; public class FaceBookLoginTest { private static WebDriver driver; HomePage homePage; ...

Let's try to look at the differences between client and cluster mode of Spark. Client: When running Spark in the client mode, the SparkContext and Driver program run external to the cluster; for example, from your laptop. Local mode is only for the case when you do not want to use a cluster and in...

First in case you are consulting mobile.angular.io the flag --mobile doesn't work anymore. So to start , we can create a normal project with angular cli. ng new serviceWorking-example cd serviceWorking-example Now the important thing, to said to angular cli that we want to use service worker w...