Tutorial by Examples: pt

Although Catch ex As Exception claims that it can handle all exceptions - there are one exception (no pun intended). Imports System Static Sub StackOverflow() ' Again no pun intended StackOverflow() End Sub Static Sub Main() Try StackOverflow() Catch ex As Exception ...

Generally most of the exceptions are not that critical, but there are some really serious exceptions that you might not be capable to handle, such as the famous System.StackOverflowException. However, there are others that might get hidden by Catch ex As Exception, such as System.OutOfMemoryExceptio...

Always use Named Arguments to optional parameters, to avoid potential bugs when the method is modified. class Employee { public string Name { get; private set; } public string Title { get; set; } public Employee(string name = "<No Name>", string title = "&lt...

You can load AngularJS services in vanilla JavaScript using AngularJS injector() method. Every jqLite element retrieved calling angular.element() has a method injector() that can be used to retrieve the injector. var service; var serviceName = 'myService'; var ngAppElement = angular.element(do...

There are four ways to work with JavaScript plugins, Ember add-on Import JavaScript plugins globally Consume named AMD plugins Via ember-browserify

Decryption Code public static string Decrypt(string cipherText) { if (cipherText == null) return null; byte[] cipherBytes = Convert.FromBase64String(cipherText); using (Aes encryptor = Aes.Create()) { Rfc2898DeriveBytes pdb = ...

In Twig template, Request object is available at {{ app.request }} When you want display request method in Twig, try this: <p>Request method: {{ app.request.method }}</p> In PHP template <p>Request method: <?php echo $app->getRequest()->getMethod() ?></p>...

Code <?php echo get_option( 'something_bla_bla_bla' ); ?> Output false Code <?php echo get_option( 'something_bla_bla_bla', 'Oh no!' ); ?> Output Oh no!

Work in progress

Create enum of custom errors enum RegistrationError: Error { case invalidEmail case invalidPassword case invalidPhoneNumber } Create extension of RegistrationError to handle the Localized description. extension RegistrationError: LocalizedError { public var errorDescription...

Sometimes, we want some fields in the JSON string to be optional. For example, data Person = Person { firstName :: Text , lastName :: Text , age :: Maybe Int } This can be achieved by import Data.Aeson.TH $(deriveJSON ...

Suppose we'd like to wrap the Google Maps JavaScript API google.maps: @JS('google.maps') library maps; import "package:js/js.dart"; @JS() class Map { external Map(Location location); external Location getLocation(); } We now have the Map Dart class which corresponds to t...

bindings: { mandatory: '=' optional: '=?', foo: '=?bar' } Optional attributes should be marked with question mark: =? or =?bar. It is protection for ($compile:nonassign) exception.

Block will capture variables that appeared in the same lexical scope. Normally these variables are captured as "const" value: int val = 10; void (^blk)(void) = ^{ val = 20; // Error! val is a constant value and cannot be modified! }; In order to modify the variable, you need to ...

Parameters can be marked as optional by giving them a default value. Optional parameters can be omitted when calling the function. string greet (string name, string language = "English") { if (language == "English") { return @"Hello, $name!"; } else ...

With turbolinks, the traditional approach to using: $(document).ready(function() { // awesome code }); won't work. While using turbolinks, the $(document).ready() event will only fire once: on the initial page load. From that point on, whenever a user clicks a link on your website, turbolink...

Optionals type, which handles the absence of a value. Optionals say either "there is a value, and it equals x" or "there isn't a value at all". An Optional is a type on its own, actually one of Swift’s new super-powered enums. It has two possible values, None and Some(T), where ...

Let's say you have already created the custom Test Work Orders screen to manage test work orders in your Acumatica ERP application: There is already NoteID field declared in the TestWorkOrder DAC, managed on the Test Work Orders screen: [Serializable] public class TestWorkOrder : IBqlTable { ...

You can capture the correct this using a closure. new Vue({ el:"#star-wars-people", data:{ people: null }, mounted: function(){ // Before executing the web service call, save this to a local variable var self = this; $.getJSON("http://swapi.co/api/peop...

public class ConvertMapToList { public static void main(String[] args) { Map<Integer, String> map = new HashMap<>(); map.put(10, "apple"); map.put(20, "orange"); map.put(30, "banana"); map.put(40, "w...