Run results for: object iteration

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0

Browser: Firefox 61

Operating system: Windows 7

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
for (var key...)	1679871.6 Ops/sec
direct call	16798766.0 Ops/sec

Script Preparation code:

var myObject = {
  one: 1,
  two: 2,
  three: 3,
  four: 4,
  five: 5,
  six: 6,
  seven: 7,
  eight: 8,
  nine: 9,
  ten: 10,
}

Tests:

for (var key...)
let total = 0; for (var key in myObject) { total += myObject[key]; }
direct call
let total = 0; total += myObject['one']; total += myObject['two']; total += myObject['three']; total += myObject['four']; total += myObject['five']; total += myObject['six']; total += myObject['seven']; total += myObject['eight']; total += myObject['nine']; total += myObject['ten'];