Tutorial by Examples: di

demoApp.directive('demoDirective', function () { var directiveDefinitionObject = { multiElement: priority: terminal: scope: {}, bindToController: {}, controller: controllerAs: require: restrict: templateNamespace: template: templateU...

Sometimes you want to add an element to the beginning of an array without modifying any of the current elements (order) within the array. Whenever this is the case, you can use array_unshift(). array_unshift() prepends passed elements to the front of the array. Note that the list of elements is ...

When running from the CLI, PHP exhibits some different behaviours than when run from a web server. These differences should be kept in mind, especially in the case where the same script might be run from both environments. No directory change When running a script from a web server, the current w...

Dynamic binding, also referred as method overriding is an example of run time polymorphism that occurs when multiple classes contain different implementations of the same method, but the object that the method will be called on is unknown until run time. This is useful if a certain condition dicta...

Access ModifierVisibilityInheritancePrivateClass onlyCan't be inheritedNo modifier / PackageIn packageAvailable if subclass in packageProtectedIn packageAvailable in subclassPublicEverywhereAvailable in subclass There was once a private protected (both keywords at once) modifier that could be appli...

We can use partial application to "lock" the first argument. After applying one argument we are left with a function which expects one more argument before returning the result. (+) :: Int -> Int -> Int addOne :: Int -> Int addOne = (+) 1 We can then use addOne in order to...

Consider the character class [aeiou]. This character class can be used in a regular expression to match a set of similarly spelled words. b[aeiou]t matches: bat bet bit bot but It does not match: bout btt bt Character classes on their own match one and only one character at a time...

For Addition "4" + 2 # Gives "42" 4 + "2" # Gives 6 1,2,3 + "Hello" # Gives 1,2,3,"Hello" "Hello" + 1,2,3 # Gives "Hello1 2 3" For Multiplication "3" * 2 # Gives "33" 2 * "3&quot...

To access pixel values in an OpenCV cv::Mat object, you first have to know the type of your matrix. The most common types are: CV_8UC1 for 8-bit 1-channel grayscale images; CV_32FC1 for 32-bit floating point 1-channel grayscale images; CV_8UC3 for 8-bit 3-channel color images; and CV_32FC3 ...

Model using System.ComponentModel.DataAnnotations; public class ViewModel { [Required(ErrorMessage="Name is required")] public string Name { get; set; } [StringLength(14, MinimumLength = 14, ErrorMessage = "Invalid Phone Number")] [Required(ErrorMessag...

Given any value of type Int or Long to render a human readable string: fun Long.humanReadable(): String { if (this <= 0) return "0" val units = arrayOf("B", "KB", "MB", "GB", "TB", "EB") val digitGroups = (Mat...

A common use case for extension methods is to improve an existing API. Here are examples of adding exist, notExists and deleteRecursively to the Java 7+ Path class: fun Path.exists(): Boolean = Files.exists(this) fun Path.notExists(): Boolean = !this.exists() fun Path.deleteRecursively(): Bool...

With this declaration: fun Temporal.toIsoString(): String = DateTimeFormatter.ISO_INSTANT.format(this) You can now simply: val dateAsString = someInstant.toIsoString()

Consider this simple example: import QtQuick 2.7 import QtQuick.Controls 2.0 ApplicationWindow { visible: true width: 400 height: 640 Rectangle{ id: rect anchors.centerIn: parent height: 100 width: parent.width color: "blue...

User can add custom route, mapping an URL to a specific action in a controller. This is used for search engine optimization purpose and make URLs readable. routes.MapRoute( name: "AboutUsAspx", // Route name url: "AboutUs.aspx", // URL with parameters defaults: new { c...

var dict = ["name": "John", "surname": "Doe"] // Set the element with key: 'name' to 'Jane' dict["name"] = "Jane" print(dict)

using System.Net; using System.IO; ... string requestUrl = "https://www.example.com/submit.html"; HttpWebRequest request = HttpWebRequest.CreateHttp(requestUrl); request.Method = "POST"; // Optionally, set properties of the HttpWebRequest, such as: request.AutomaticD...

using System.Net; using System.IO; ... string requestUrl = "https://www.example.com/page.html"; HttpWebRequest request = HttpWebRequest.CreateHttp(requestUrl); // Optionally, set properties of the HttpWebRequest, such as: request.AutomaticDecompression = DecompressionMethods.GZ...

let myAllKeys = ["name" : "Kirit" , "surname" : "Modi"] let allKeys = Array(myAllKeys.keys) print(allKeys)

Two Random class created at the same time will have the same seed value. Using System.Guid.NewGuid().GetHashCode() can get a different seed even in the same time. Random rnd1 = new Random(); Random rnd2 = new Random(); Console.WriteLine("First 5 random number in rnd1"); for (int i = 0...