JavaScript Callable Object using closures & prototypes

index.js

'use strict'

class Callable extends Function {
  constructor() {
    var closure = function(...args) { return closure._call(...args) }
    // Or without the spread/rest operator:
    // var closure = function() {
    //   return closure._call.apply(closure, arguments)
    // }
    return Object.setPrototypeOf(closure, new.target.prototype)
  }
  
  _call(...args) {
    console.log(this, args)
  }
}