Example how to use bounded functions with bind or call

bounded-functions-with-bind.js

const father = {
  name: 'Zeus',
}
const mother = {
  name: 'Demeter',
}
const persephone = {
  say() {
    console.log(`"Persephone" is daughter from "${this.name}"`)
  }
}

const sayWhoIsParentOfPersephone = persephone.say.bind(mother) // you can pass variable father to show "Zeus" like father
sayWhoIsParentOfPersephone()
// or
// persephone.say.call(mother)