Run results for: JS if/if vs if/else if with negotiations

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one month ago

Script Preparation code:

var obj = { type: 1 }

Tests:

if/if
if(!obj) { return 'not defined' } if(obj.type === 1) { return 'defined 1' } if(obj.type === 2) { return 'defined 2' }
if/else if heterogeneous
if(!obj) { return 'not defined' } else if(obj.type === 1) { return 'defined 1' } else if(obj.type === 2) { return 'defined 2' }
if & if/else if homogeneous
if(!obj) { return 'not defined' } if(obj.type === 1) { return 'defined 1' } else if(obj.type === 2) { return 'defined 2' }