Run results for: fn field vs obj field

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_1_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1.2 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.1.2

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

fn2

36.5M/s

obj

33.7M/s

33.1M/s

View exact numbers

Test name	Executions per second
✓ fn2	36,465,088 Ops/sec
obj	33,703,032 Ops/sec
fn	33,114,060 Ops/sec

Script Preparation code:

var fn = () => {}
var fn2 = function fn2() {}
var obj = {}

Tests:

fn
fn.a = 'a'
fn2
fn2.a = 'a'
obj
obj.a = 'a'