giving a variable a class in javascript code example

Example 1: how to create instance of class in javascript

class Hello {
	person(name){
    	this.name = name;
    }
  	// Constructor - Important except for JSX
    constructor(name){
    	this.person(name);
        console.log(`Hello ${this.name}`);
    }
}

const helloInstance = new Hello('john doe');

Example 2: javascript classes

let Person = class {
  constructor(firstName, lastName) {
    this.firstName = firstName;
    this.lastName = lastName;
  }
}