In the JavaScript class syntax introduced in ES6 (static properties are accessible from the class, instance properties are accessible from the instances): static fields belong to the class; static methods belong to the class; instance methods belong to the instances’…
import React, { useState, useContext, createContext } from "react"; import { Link, Redirect } from "react-router-dom"; export class Login extends React.Component { constructor(props) { super(props) window.data_login_callback = this.data_login_callback this.data_login_callback = this.data_login_callback.bind(this); } state = { brand: "" } rend(props){ console.log("ddd",props)…
I'd like to create some kind of factory to automate the process of creating JS classes. The factory should loop through an object that contains classes names and their respective parameters. The following simplified code sample hopefully demonstrates what I…
I've got an instance where I want to create X number of Classes that all need a constructor to assign a logging service, and then all have a method create which will handle the data object differently depending on the…
I'm working on a one-pager ([https://rnp.mijnbaron.be/]) and I'm trying to add / remove an active class to the menu items if clicked. I already got 1 part working (adding), but I'm struggling with how to remove the active class from…
const images = document.querySelectorAll(".img_items"); images.forEach((image) => { image.addEventListener("click", () => { image.classList.add("select"); }); }); .img_items::after{ content: ' ' attr(class) } <div class="img_container"> <div class="img_items ">1</div> <div class="img_items ">2</div> <div class="img_items">3</div> <div class="img_items">4</div> </div> I tried adding the class to the…
I'm creating a subclass of the NodeJS http.Agent to get rid of the queuing behavior when it has reached the socket limit. I've overridden addRequest to track the number of concurrent requests per target, rejecting requests when no capacity is…
Forgive me if I'm doing this wrong according to forum's rules, but I wasn't sure how to. This is a revision of the question asked at the link below. There was a response there that was close to an answer,…
I need to call a member function from the callback function in an event listener which is also in another member function. Here is a simplified example: class C { finished() { console.log ('over'); } timer() { console.log('started') setTimeout(function fct()…
i'll start with an example because i'm not sure i can explain this properly. the easier part of the problem (i think although i can't get it either): take some strings eg. 'Example', 'DOMNode', 'DOMText', 'DOMElement' and output '(Example|DOM(Node|Text|Element))' a…