Arguments object scope not maintained within inner functions when using function shorthand ()

[jdalrymple]

Version: 7.3.0, 6.4.0, 4.0.0 (Just tested these three)
Platform:

1. Linux 4.8.13-1-ARCH deps: update openssl to 1.0.1j #1 SMP PREEMPT x86_64 GNU/Linux
2. Also tested in Chrome 55.0.2883.75 (64-bit)

function test(){
  this['fake'] = () =>{
	console.log(arguments)
  }
}

var a = new test('a');

a.fake('dummyArguments')

=> 'a'

Shouldnt this return 'dummyArguments' since the arguments object is scoped http://stackoverflow.com/questions/29216881/inner-function-scope-in-javascript

Where as when not using the function shorthand:

function test(){
  this['fake'] = function() {
	console.log(arguments)
  }
}

var a = new test('a');

a.fake('dummyArguments')

=> 'dummyArguments'

[vsemozhetbyt]

An arrow function expression has a shorter syntax than a function expression and does not bind its own this, arguments, super, or new.target.

MDN

[jdalrymple]

Oops, didn't see that before! Thanks! via Newton Mail [https://cloudmagic.com/k/d/mailapp?ct=pa&cv=9.3.39&pv=6.0.1&source=email_footer_2] On Tue, Dec 27, 2016 at 4:21pm, Vse Mozhet Byt < notifications@github.com [notifications@github.com] > wrote: An arrow function expression has a shorter syntax than a function expression and does not bind its own this, arguments, super, or new.target. MDN [https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions] — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub [#10476 (comment)] , or mute the thread [https://github.com/notifications/unsubscribe-auth/ADkfrkI74z8e2bgm0nnipW5s6If23mpJks5rMYFEgaJpZM4LWgp6] .