I have a few questions regarding the code below: export class Person { constructor(obj = { id: 0, name: '', lastName: '', eyeColor: '', age: 0 }) { this.id = obj.id; this.name = obj.name; this.lastName = obj.lastName; this.eyeColor = obj.eyeColor;…
I have a base class and another that extends it, how can I access fields in the constructor? class BaseModel { constructor() { console.log('no fields :(') console.log(this.fields) this.fields.map((field) => { field.label = field.label || field.name; }) } } class UserModel…
I need to process multiple messages in JSON format. Each message has its own nested structure. I would like to create a Python SDK to process these messages. My idea is to map each JSON structure into a set of…
I Moved one form outside my Class Component. Eg: main.js <FormGroup> <Col sm={2} style={{ textAlign: 'right' }}> <input ref='emp_name' value='sam' /> </Col> </FormGroup> <FormGroup> <Col sm={2} style={{ textAlign: 'right' }}> <input ref='emp_salary' value='20k' /> </Col> </FormGroup> I moved salary portion…
I don't even know if this is possible, something told me to do functional components but I am already too far deep into the code and I am scared to go back (this is an issue I must learn to…
I'm new to JS and implementing a polymorphic class hierachy. It appears that within the super constructor (when called from a derived constructor), 'this' refers to the derived class, not the super class. So, when the super constructor calls a…
I try to declare private Symbol property in ES6+ class, below's approach are all wrong. class MyClass { #[Symbol.for('my-symbol-prop1')] = 'my-symbol-prop1'; // SyntaxError [#Symbol.for('my-symbol-prop1')] = 'my-symbol-prop1'; // SyntaxError } My question: Is there any way to declare a true private…
How can I manage image paths for different categories, like logos and backgrounds, in Dart? I tried using nested classes like in Java, but Dart doesn't support that! What are the best practices or alternatives to handle this? void main()…
The issue in question relates to human readability and data organization. I would like to assign getters and setters as children of class field properties, however I can't get this to reference the class prototype data. I think this is…
class bcomp { some(){ console.log("bcomp"); } } class acomp extends bcomp { some(){ super.some(); console.log("acomp"); } } var ins = new acomp(); ins.some() so output will be bcomp acomp I need to override some method of acomp with super keyword…