fp-js-3_hof-2.js

function makeGreeter (greeting) {
  return function greet (name) {
    return `${greeting}, ${name}!`
  }
}

// or, using the ES6 syntax:

const makeGreeter = greeting => name => `${greeting}, ${name}!`

const greet = makeGreeter('Hello')
console.log(greet('Krzysztof'))