Clairifying this in Javascript example 5

this_js_ex5.js

const foo = {
  bar: 10,
  multiplyByBar: function(...args) {
    args.forEach(arg => console.log(arg * this.bar)); // arrow function does not change the context
  }
};

const qux = foo.multiplyByBar.bind(foo);

qux(5);           // logs 50
qux(5, 10, 15);   // logs 50, then 100, then 150