JSFiddle - React, Tailwind, and code Playground

JavaScript

function GeneralClass (a, b, c) {
    this.a = a;
    this.b = b;
    this.c = c;
}

GeneralClass.prototype.hello = function () {
    console.log("hello");
    console.log(this.a);
    console.log(this.b);
    console.log(this.c);
}

var g = new GeneralClass(1, 2, 3);
g.hello();

function SpecificClass (b) {
    this.a = 1;
    this.b = b;
    this.c = 3;
}

SpecificClass.prototype = new GeneralClass();

SpecificClass.prototype.bye = function () {
    console.log("bye");
    console.log(this.b);
}

var s = new SpecificClass(22);
s.hello();
s.bye();