Tutorial by Examples: le

Introduction SRP can be defined as “a class handles only one responsibility”. This is a very short definition for something influential on to the other principles of S.O.L.I.D. I believe that if we get this right, it will have a positive knock-on effect on the upcoming principles, so let’s get star...

Here we give an example of ISP violation and then refactor that violation. Without talking unnecessary things let's jump into the code. ISP violation : public interface IMessage{ IList<string> ToAddress {get; set;} IList<string> BccAddresses {get; set;} string MessageBody {get; s...

First Select Or Create a database. > use mydb switched to db mydb Using db.createCollection("yourCollectionName") method you can explicitly create Collection. > db.createCollection("newCollection1") { "ok" : 1 } Using show collections command see all col...

MongoDB's db.collection.drop() is used to drop a collection from the database. First, check the available collections into your database mydb. > use mydb switched to db mydb > show collections newCollection1 newCollection2 newCollection3 system.indexes Now drop the collection with...

MongoClient.connect('mongodb://localhost:27017/myNewDB',function (err,db) { if(err) console.log("Unable to connect DB. Error: " + err) else console.log('Connected to DB'); db.close(); }); myNewDB is DB name, if it does not exists in database then it...

/In async.series,all the functions are executed in series and the consolidated outputs of each function is passed to the final callback. e.g/ var async = require('async'); async.series([ function (callback) { console.log('First Execute..'); callback(null, 'userPersonalData'); }, function (cal...

The org.bukkit.event.EventHandler annotation accepts a couple parameters. priority - Indicates the priority of your listener. There are the six different priorities, in order of execution: LOWEST,LOW,NORMAL[default],HIGH,HIGHEST,MONITOR. These constants refer to the org.bukkit.event.EventPriority e...

Using scanf Scanf scans text read from standard input, storing successive space-separated values into successive arguments as determined by the format. It returns the number of items successfully scanned. If that is less than the number of arguments, err will report why. Newlines in the input mus...

var config = {}; var timeout = 120000; config.framework = 'jasmine2'; config.allScriptsTimeout = timeout; config.getPageTimeout = timeout; config.jasmineNodeOpts.isVerbose = true; config.jasmineNodeOpts.defaultTimeoutInterval = timeout; config.specs = ['qa/**/*Spec.js']; config.browserName...

var config = {}; var timeout = 120000; config.framework = 'jasmine2'; config.allScriptsTimeout = timeout; config.getPageTimeout = timeout; config.jasmineNodeOpts.isVerbose = true; config.jasmineNodeOpts.defaultTimeoutInterval = timeout; config.specs = ['qa/**/*Spec.js']; config.capabilitie...

This configuration lets' you run your total spec files in two browser instances in parallel. It helps reduce the overall test execution time. Change the maxInstances based on your need. Note: Make sure your tests are independent. var config = {}; var timeout = 120000; config.framework = 'jasmi...

var config = {}; var timeout = 120000; config.framework = 'jasmine2'; config.allScriptsTimeout = timeout; config.getPageTimeout = timeout; config.jasmineNodeOpts.isVerbose = true; config.jasmineNodeOpts.defaultTimeoutInterval = timeout; config.specs = ['qa/**/*Spec.js']; config.multiCapabi...

Tkinter support .ppm files from PIL(Python Imaging Library), .JPG, .PNG and .GIF. To import and image you first need to create a reference like so: Image = PhotoImage(filename = [Your Image here]) Now, we can add this image to Button and Labels like so using the "img" callback: Lbl ...

In an angular app everything goes around scope, if we could get an elements scope then it is easy to debug the angular app. How to access the scope of element: angular.element(myDomElement).scope(); e.g. angular.element(document.getElementById('yourElementId')).scope() //accessing by ID Gett...

One of several applications of bit manipulation is converting a letter from small to capital or vice versa by choosing a mask and a proper bit operation. For example, the a letter has this binary representation 01(1)00001 while its capital counterpart has 01(0)00001. They differ solely in the bit in...

#include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc.hpp> // drawing shapes #include <iostream> int main( int argc, char** argv ) { // First create a black image. cv::Mat image(500,500, CV_8UC3, cv::Scalar(0,0,0...

from kivy.app import App from kivy.lang import Builder from kivy.uix.button import Button items = [ {"color":(1, 1, 1, 1), "font_size": "20sp", "text": "white", "input_data": ["some","random","data&q...

Dim lo as ListObject Set lo = Sheet1.ListObjects("Table1") lo.Unlist

This example shows how to set Click EventHandlers in a Xamarin.Android RecyclerView. In Android Java, the way to set up a listener for a Click is using a onClickListener for the view that will be clicked, like this: ImageView picture = findViewById(R.id.item_picture); picture.setOnClickListener(n...

The idea behind the AdhocWorkspace is to create a workspace on the fly. var workspace = new AdhocWorkspace(); string projectName = "HelloWorldProject"; ProjectId projectId = ProjectId.CreateNewId(); VersionStamp versionStamp = VersionStamp.Create(); ProjectInfo helloWorldProject = P...