Run results for: Bind vs closure declaration

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

use closure()

4.6M/s

create closure

4.4M/s

create bind

3.7M/s

use bind

3.6M/s

View exact numbers

Test name	Executions per second
✓ use closure()	4,601,246 Ops/sec
create closure	4,420,510 Ops/sec
create bind	3,727,965 Ops/sec
use bind	3,577,243 Ops/sec

Script Preparation code:

function toBind(param) {
  return param * 2;
}
function bind() {
  var rnd = Math.random();
  return toBind.bind(null, rnd);
}

function closure() {
  var rnd = Math.random();
  return inner;
  function inner() {
    return rnd * 2;
  }
}

Tests:

create bind
var fnc = bind();
create closure
var fnc = closure()
use bind
var fnc = bind(); var out = fnc();
use closure()
var fnc = closure(); var out = fnc();