Run results for: function vs class 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36

Browser: Chrome 89

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Script Preparation code:

var arr = [];

Tests:

function declaration
function functionDeclaration(item) { arr.push(item); } for (let i = 1; i < 10000; i++) { functionDeclaration(i); }
class
class Test { constructor(item) { this.item = item; } addItem(){ arr.push(this.item) } } for (let i = 1; i < 10000; i++) { new Test(i).addItem(); }
class 2
class Test { constructor(item) { arr.push(item); } } for (let i = 1; i < 10000; i++) { new Test(i); }
var function expression
var functionExpression = function(item) { arr.push(item); }; for (let i = 1; i < 10000; i++) { functionExpression(i); }
let function expression
let functionExpression = function(item) { arr.push(item); }; for (let i = 1; i < 10000; i++) { functionExpression(i); }
const function expression
const functionExpression = function(item) { arr.push(item); }; for (let i = 1; i < 10000; i++) { functionExpression(i); }