Run results for: Closure vs arrow function

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:66.0) Gecko/20100101 Firefox/66.0

Browser: Firefox 66

Operating system: Mac OS X 10.14

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Closure	161725500.0 Ops/sec
Arrow function	150218800.0 Ops/sec

Script Preparation code:

var msg = "test";
var sayClosure = function() {
  var d = msg;
}

this.msg = "test";
var sayArrow = () => {
  var d =  this.msg;
}

Tests: