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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 Edg/134.0.0.0

Browser: Chrome 134

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 28 days ago

Test name	Executions per second
Pass object	17710850.0 Ops/sec
Pass raw values	17628134.0 Ops/sec
Pass array	17068334.0 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 = ({a,b,c}) => {
  return a.length + b * c ? 2 : 1;
}

var passRawValues = (val_a, val_b, val_c) => {
  return val_a.length + val_b * val_c ? 2 : 1;
}

var passArray = ([a,b,c]) => {
  return a.length + b * c ? 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);

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

Updated because it looks like Firefox optimizes away the entire test

Pass object

Pass raw values

Pass array