Run results for: Check is string or object with property - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/111.0

Browser: Firefox 111

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Property test Object	577365056.0 Ops/sec
String test Object	1077954304.0 Ops/sec
Property test String	711973120.0 Ops/sec
String test String	1052632576.0 Ops/sec

Script Preparation code:

var xxx = {test: 1};
var yyy = "TEST";

Tests:

Property test Object
if(xxx?.test){ }
String test Object
if(typeof xxx === 'string'){ }
Property test String
if(yyy?.test){ }
String test String
if(typeof yyy === 'string'){ }