Run results for: Passing objects with raw values vs passing just raw values vs array of values 2testcharlie

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36

Browser: Chrome 115

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Pass object	4847758.0 Ops/sec
Pass raw values	4811689.5 Ops/sec
Pass array	6479064.0 Ops/sec
Pass obj2	4715729.5 Ops/sec

Script Preparation code:

var a = "Here's a string value";
var b = 5; // and a number
var c = false;

var object = {
  a, b, c
}

var array = [
  a, b, c
];

var passObject = (obj) => {
  return obj.a.length + obj.b * obj.c ? 2 : 1;
}

var passRawValues = (val_a, val_b, val_c) => {
  return val_a.length + val_b * val_c ? 2 : 1;
}

var passArray = (arr) => {
  return arr[0].length + arr[1] * arr[2] ? 2 : 1;
}


var x = 0;

Tests:

Pass object
x << 1; x ^= passObject(object);
Pass raw values
x << 1; x ^= passRawValues(a, b, c);
Pass array
x << 1; x ^= passArray(array);
Pass obj2
x << 1; x ^= passObject({ a:a, b:b, c:c});

Run results for: Passing objects with raw values vs passing just raw values vs array of values 2testcharlie

Updated because it looks like Firefox optimizes away the entire test

Pass object

Pass raw values

Pass array

Pass obj2