Run results for: Re-used function declaration vs Creating arrow function from factory vs Creating plain function from factory

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36

Browser: Chrome 108

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Factory of arrow function	5068488.0 Ops/sec
Factory of reused function	1524828.6 Ops/sec
Factory of plain function	5380412.0 Ops/sec

Script Preparation code:

function factory(closureValue) {
  return (b) => closureValue + b;
}

function factoryReused(contextValue) {
  return reused.bind(contextValue);
}

function reused(b) {
  return this + b;
}

function factoryFunc(closureValue) {
  return function newF(b) {
    return closureValue + b;
  }
}

Tests:

Factory of arrow function
var a = factory(2)(3)
Factory of reused function
var a = factoryReused(2)(3)
Factory of plain function
var a = factoryFunc(2)(3)

Run results for: Re-used function declaration vs Creating arrow function from factory vs Creating plain function from factory

Factory of arrow function

Factory of reused function

Factory of plain function