Tutorial by Examples: e

Sometimes the download takes longer than the cell is being displayed. In this case it can happen, that the downloaded image is shown in the wrong cell. To fix this we can not use the UIImageView Extension. We still will be using Alamofire however we will use the completion handler to display the im...

Use .outerHTML to get the HTML Here is a code sample to get the entire HTML of the website private async void GetHTMLAsync() { var siteHtML = await webView.InvokeScriptAsync("eval", new string[] { "document.documentElement.outerHTML;" }); }

Use .innerText to set the value Here is a code sample to enter text in Search Box on Bing website private async void EnterTextAsync(string enterText) { var functionString = string.Format(@"document.getElementsByClassName('b_searchbox')[0].innerText = '{0}';", enterText); await...

Use .click() to simulate click Here is a code sample to click search button on Bing website private async void SimulateClickAsync() { var functionString = string.Format(@"document.getElementsByClassName('b_searchboxSubmit')[0].click();"); await webView.InvokeScriptAsync("...

var assert = require('assert'); describe('String', function() { describe('#split', function() { it('should return an array', function() { assert(Array.isArray('a,b,c'.split(','))) }); }); });

I have read and watched a lot of different Dagger2 tutorials but most of them are too long or hard to understand so I decided to write a new simple and short tutorial for Dagger2, I hope you like it. Why we need it? Simplifies access to shared instances: It provides a simple way to obtain refere...

This example shows how mouse event is used in QML. import QtQuick 2.7 import QtQuick.Window 2.2 Window { visible: true Rectangle { anchors.fill: parent width: 120; height: 240 color: "#4B7A4A" MouseArea { anchors.fill: paren...

var myVariable = "This is a variable!"; This is an example of defining variables. This variable is called a "string" because it has ASCII characters (A-Z, 0-9, !@#$, etc.)

var number1 = 5; number1 = 3; Here, we defined a number called "number1" which was equal to 5. However, on the second line, we changed the value to 3. To show the value of a variable, we log it to the console or use window.alert(): console.log(number1); // 3 window.alert(number1); //...

var myInteger = 12; // 32-bit number (from -2,147,483,648 to 2,147,483,647) var myLong = 9310141419482; // 64-bit number (from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807) var myFloat = 5.5; // 32-bit floating-point number (decimal) var myDouble = 9310141419482.22; // 64-bit floating-...

var myArray = []; // empty array An array is a set of variables. For example: var favoriteFruits = ["apple", "orange", "strawberry"]; var carsInParkingLot = ["Toyota", "Ferrari", "Lexus"]; var employees = ["Billy", "Bob...

Let's first brush up with what are the Instance Variables: They behave more like properties for an object. They are initialized on an object creation. Instance variables are accessible through instance methods. Per Object has per instance variables. Instance Variables are not shared between object...

Comparison of access controls of Java against Ruby: If method is declared private in Java, it can only be accessed by other methods within the same class. If a method is declared protected it can be accessed by other classes which exist within the same package as well as by subclasses of the class...

Creating an Snackbar without the need pass view to Snackbar, all layout create in android in android.R.id.content. public class CustomSnackBar { public static final int STATE_ERROR = 0; public static final int STATE_WARNING = 1; public static final int STATE_SUCCESS = 2; publi...

Detailed instructions on getting graph set up or installed.

A pointer to a concrete data type, converted to void *, can be used to pass values to and return results from the thread function. #include <stdio.h> #include <stdlib.h> #include <pthread.h> struct thread_args { int a; double b; }; struct thread_result { ...

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 / \ /...

Rhas a vast collection of built-in datasets. Usually, they are used for teaching purposes to create quick and easily reproducible examples. There is a nice web-page listing the built-in datasets: https://vincentarelbundock.github.io/Rdatasets/datasets.html Example Swiss Fertility and Socioecono...

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...