does javascript have class methods code example

Example 1: javascript classes

class SayHelloTo {
  name (to) {
    console.log(`Hello ${to}`);
  }
  constructor (to) {
    this.name(to);
  }
}
const helloWorld = new SayHelloTo(World);

Example 2: variables in js class

constructor(){
    this.foo = bar
}