Run results for: js object vs array

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36

Browser: Chrome 76

Operating system: Mac OS X 10.14.4

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
arr	1492.7 Ops/sec
obj	1441.3 Ops/sec

Script Preparation code:

var arr = []
for (var i = 0; i < 10000; i++) arr[i] = i
var obj = {}
for (var i = 0; i < 10000; i++) obj[i] = i

Tests: