Run results for: test5 delete - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko

Browser: IE 11

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
delete o.p	2537541.0 Ops/sec
delete o["p"]	2482627.0 Ops/sec
o.p = undefined	1965695.0 Ops/sec
o["p"] = undefined;	1583234.0 Ops/sec
o.p = null	2236517.0 Ops/sec
o["p"] = null	2272753.0 Ops/sec

Website performance monitoring

Script Preparation code:

var o = { p: "p" };

Tests:

delete o.p
delete o.p;
delete o["p"]
delete o["p"];
o.p = undefined
o.p = undefined;
o["p"] = undefined;
o["p"] = undefined;
o.p = null
o.p = null;
o["p"] = null
o["p"] = null;