Run results for: Closure vs arrow function

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:87.0) Gecko/20100101 Firefox/87.0

Browser: Firefox 87

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Closure	71588.0 Ops/sec
Arrow function	74859.5 Ops/sec

Tests:

Closure
var msg = "test"; var say = function() { console.log(msg); } say();
Arrow function
this.msg = "test"; var say = () => { console.log(this.msg); } say();