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Let's define a grammar enabling us to perform additions, multiplications with the usage of parenthesis. To add more value to this example, we are going to compute the result of the arithmetic expression. Summary of the grammar: expression → times expression → times '+' expression times → elemen...

Install Firebase resource in the the AppScript To do that click on Resources and then on Libraries. Firebase has a unique project library key that need to be installed in the AppScript. Click on Libraries The following pop-up appears. Enter the following project key in the textbox. MYeP8ZEE...

1. To write a simple data to test whether connection is working or not. function myFunction(){ var firebaseUrl = "https://example-app.firebaseio.com/"; var secret = "secret-key"; var base = FirebaseApp.getDatabaseByUrl(firebaseUrl, secret); base.setData("test&quo...

First step of creating a plugin is creating the folder and file which the plugin will load from. Plugins are located in /wp-content/plugins/. The WordPress standard is to create a folder and filename that mirror each other like so: /wp-content/plugins/myplugin/ /wp-content/plugins/myplugin/myplu...

Creates a graph topology in a distributed manner so that each node defines its neighbors. Each node communicates its rank among neighbors with MPI_Neighbor_allgather. #include <mpi.h> #include <stdio.h> #define nnode 4 int main() { MPI_Init(NULL, NULL); int rank; ...

import org.scalajs.dom import dom.document def appendP(target: dom.Node, text: String) = { val pNode = document.createElement("p") val textNode = document.createTextNode(text) pNode.appendChild(textNode) target.appendChild(pNode) }

To extend and expand upon the binding experience we have converters to convert one a value of one type into another value of another type. To leverage Converters in a Databinding you first need to create a DataConverter class tht extens either IValueConverter(WPF & UWP) or IMultiVal...

Working Example: https://jsfiddle.net/Twisty/4f5yh3pa/7/ Cancelling and Reverting a sortable is not strongly documented. The helps show how moving an item from one list to another connected list can be conditionally cancelled. by default, this is not animated by sortable, this example includes an a...

Partial Update: Used when a partial document update is needed to be done, i.e. in the following example the field name of the document with id doc_id is going to be updated to 'John'. Note that if the field is missing, it will just be added to the document. doc = { "doc": { ...

Example of usage scalacheck with scalatest. Below we have four tests: "show pass example" - it passes "show simple example without custom error message " - just failed message without details, && boolean operator is used "show example with error messages on arg...

These function will help you to take the screenshot and also match the image with the part of the screen. .screenshot('c:\\path') #get the screenshot. .locateOnScreen('c:\\path') #search that image on screen and get the coordinates for you. locateCenterOnScreen('c:\\path') #get th...

To use multi-threading in MATLAB one can use the batch command. Note that you must have the Parallel Computing toolbox installed. For a time-consuming script, for example, for ii=1:1e8 A(ii)=sin(ii*2*pi/1e8); end to run it in batch mode one would use the following: job=batch("da&quot...

first add the OkHttp to the gradle build file of the app module compile 'com.squareup.picasso:picasso:2.5.2' compile 'com.squareup.okhttp:okhttp:2.4.0' compile 'com.jakewharton.picasso:picasso2-okhttp3-downloader:1.0.2' Then make a class extending Application import android.app.Application; ...

// add an item to a menu menu.addItem(item) // remove and item from a menu menu.removeItem(item)

SELECT ... WHERE dt >= '2017-02-01' AND dt < '2017-02-01' + INTERVAL 1 MONTH Sure, this could be done with BETWEEN and inclusion of 23:59:59. But, the pattern has this benefits: You don't have pre-calculate the end date (which is often an exact length from the start) You...

By leveraging some of the member variables in the GridLayout instance, we can change the margins around the layout, and spacing between cells. In this example we set the following: verticalSpacing = 0 - Sets the vertical spacing between cells to 0px. horizontalSpacing = 20 - Sets the horizontal ...

If you care about your indices (yes, that's the plural of index), you should maintain them, especially if you do frequent inserts or deletes that affect them. Azure Automation provides an almost ready runbook that you can use and schedule to perform automated index rebuilding. Here's what you have ...

The Symfony Installer is a command line tool that helps you to create new Symfony applications. It requires PHP 5.4 or higher. Downloading and installing the Symfony Installer on Linux / MacOS Open a terminal and execute the following commands: sudo mkdir -p /usr/local/bin sudo curl -LsS https:/...

To be able to run tests Chrome broser should be pre-installed on Android device,

To be able to work with web-application on Android device using Selenium below pre-conditions should be met: Android SDK installed on computer Chrome browser installed on Android device Debugging mode enabled on Android device Start adb and chromedriver server with below commands from cmd/Te...