I have an array of objects. These objects have a property that is also an array. I want to insert a new value into my array of objects. It has to be sequential in that I always want to add…
If I use Constructor Property Promotion, I can call the constructor automatically. I don't need write parent::_constructor(). But the children class can access to the attribute private. That is an error that could be solve just don't use Propery Promotion.…
So, I'm working on a C# and .NET Windows Forms project using Visual Studios 2022. The project contains three different forms, but for this forum post, we'll only be talking about the first two forms. The first form is called…
class AmtException implements Exception { String errMsg() => 'Amount should not be less than zero'; } void main() { try { var amt = -1; if (amt < 0) { throw AmtException(); } } catch (e) { print(e.errMsg()); } }…
This is my code: export class People { name: string; age: number; constructor(data: any) { this.name = data.name; this.age = data.age; } } I keep getting error for using any. What should be the type of data so that I…
I would like to create a class that would work like for example built in BigInt. So I can do: BigInt('111') BigInt('222').toString() Please guide me on how to code it. I'm using NodeJS with vanilla JavaScript. Thank you so much…
class FooBase { String? name; FooBase({required this.name}); } class Foo extends FooBase{ final String name; Foo({required this.name}) : super(name: name); } void main() { final foo = Foo(name: 'foo'); final fooForm = foo; fooForm.name = 'bar'; print(fooForm.name); } I would…
I often reach a crossroad in my code when it comes to passing methods vs generic objects vs specialised objects. Let me explain. I am using the mediator pattern. I have DAO's which have generic methods based on a specific…
I am currently learning PHP and trying to figure out how to connect my MySQL database named (lead_gen_business) using OOP. I was given a task to get the specific output by the way. My problem is I am having a…
I’m currently building a project using Clean Architecture principles with Firebase. I’m also using Turborepo for my monorepo structure. In my codebase, under packages/, there is a “core” package that contains my business logic, including Entities and Usecases. For instance,…