Benchmark: function vs class with external declarations

Script Preparation code:

var arr = 1
var functionExpression = function(item) {
  arr  = item
};
function functionDeclaration(item) {
  arr  = item
}
class Test {
  constructor() {  }
  addItem(item){
      arr  = item
  }
}
var _test = new Test()

function functionClass(item) {
  _test.addItem(item);
}

Tests:

function declaration
arr =2 for (let i = 1; i < 10000; i++) { functionDeclaration(i); }
function expression
arr =1 for (let i = 1; i < 10000; i++) { functionExpression(i); }
class
arr =1 for (let i = 1; i < 10000; i++) { _test.addItem(i); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
function declaration
function expression
class

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36 Edg/132.0.0.0

Browser/OS: Chrome 132 on Windows

View result in a separate tab

class

80K/s

function expression

80K/s

function declaration

80K/s

View exact numbers

Test name	Executions per second
✓ class	79,923 Ops/sec
function expression	79,841 Ops/sec
function declaration	79,686 Ops/sec

function vs class with external declarations (version: 1)

Comparing performance of: `function declaration vs function expression vs class`

Created: one year ago by: Guest

Go to the latest result

function declaration

function expression

class

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

function vs class with external declarations (version: 1)

Comparing performance of: function declaration vs function expression vs class

Created: one year ago by: Guest

Go to the latest result

function declaration

function expression

class

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `function declaration vs function expression vs class`