Run results for: Bind vs closure declaration

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/119.0.6045.169 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 119

Operating system: iOS 17.1

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

create closure

3.7M/s

use closure()

3.5M/s

create bind

3.1M/s

use bind

2.8M/s

View exact numbers

Test name	Executions per second
✓ create closure	3,665,583 Ops/sec
use closure()	3,456,318 Ops/sec
create bind	3,118,167 Ops/sec
use bind	2,813,012 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();