arccoza

'use strict'

class Callable extends Function {
  constructor() {
    super()    
    return new Proxy(this, {
      apply: (target, thisArg, args) => target._call(...args)
    })
  }
  

arccoza

'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)