new MyClass(someArg);

var AddNumbers= (function () {
    function AddNumbers(x, y) {
        this.x = x;
        this.y = y;
    }
    AddNumbers.prototype.add = function () {
      return this.x + point.x;
    };
    return AddNumbers;
})();
  
  
var numbers = new AddNumbers(2, 4);
var additionOfNumbers = numbers.add();
console.log(additionOfNumbers);

6

import {Component, OnInit} from '@ angular / core';

import { Component, OnInit } from '@angular/core';
  
@Component({
    selector:'app-checkbox',
    templateUrl:'./checkbox.component.html',
    styleUrls: ['./checkbox.component.css']
})
  
export class CheckboxComponent implements OnInit {
    constructor() {
        console.log('Called Constructor');
    }
  
    ngOnInit() {
        console.log('Called ngOnInit method');
    }
}

Called Constructor
Called ngOnitit method

constructor () {
// First called before ngOnInit ()
}

Oninit () {
// Named after the constructor and named after NgOnChanges()
}