Run results for: JS multiple parameters vs parameter object

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/113.0

Browser: Firefox 113

Operating system: Windows 7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Multiple parameters	1572587392.0 Ops/sec
Existing parameter object	4016962.8 Ops/sec
Parameter object with spreading	2398723.5 Ops/sec
New parameter object	3968321.2 Ops/sec

Script Preparation code:

var data = { a: 1, b: 2, c: 3, d: 4, e: 5, f: 6, g: 7 }

function f1(a, b, c, d, e, f, g) {
  return a + b + c + d + e + f + g;
}

function f2(p) {
  return p.a + p.b + p.c + p.d + p.e + p.f + p.g;
}

Tests:

Multiple parameters
f1(data.a, data.b, data.c, data.d, data.e, data.f, Math.random())
Existing parameter object
data.g = Math.random(); f1(data)
Parameter object with spreading
f1({ ...data, g: Math.random() })
New parameter object
f1({ a: 1, b: 2, c: 3, d: 4, e: 5, f: 6, g: Math.random() })

Run results for: JS multiple parameters vs parameter object

Multiple parameters

Existing parameter object

Parameter object with spreading

New parameter object