The following is an interface. /** * @interface */ class ISomething { /** * @return {number} */ static aMethod() { throw new Error('not implemented'); } /** * @type {Object} */ static property; } The following is an implementation, and no…
I am trying to develop a more object oriented approach to my programming but have run into a problem. I thought it would be useful to group related properties in an object together with methods that operate on the properties.…
I would like to know if I can use Partial like typescript. For instance I have this class: class Registration { public function __construct( public readonly int $year, public readonly int $coverage, public readonly string $start_date, public readonly string $state_address,…
When I build mobile apps (but platform doesn't matter) I run into trouble with model classes. For example, let's say I will have model class called User with properties id, name and age. I fetch users from remote API, parse…
In the code below unfortunately I didn't create/name any object and when compiling I didn't get any error and also was able to access member function. How I need to this behaviour is this something temporary object created in stack…
I have the following function, in order to update values from four different input fields: UPDATED My Package Class is defined as followed: class Package{ constructor(packageID, type, weight,height,description){ this.packageID = packageID; this.type = type; this.weight = weight; this.height = height;…
I am facing a little problem, I have a User class that connects to the database using a static::method and fetching all users using my custom method find_all(), the result is gonna be returned associative array or objects, I need…
I'm looking through of sealed usage in my projects, and I can't figure it out. The "sealed" modifier states "The sealed modifier prevents a class from being extended or implemented outside its own library. Sealed classes are implicitly abstract." on…
I'm relatively inexperienced with C# in Visual Studio. I have created a class called Visitor and I want to track be able to access these visitors in different Forms. What would be the best way of doing this. I thought…
Since JS doesn't allow to extends more than one class, we could be with a complex inheritance chain like this class Level1 { constructor() { this.level = 1; } method1() { console.log('This is method 1'); } } class Level2 extends…