Run results for: arrow vs function test lalala

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.2 Safari/605.1.15

Browser: Safari 15

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
binded	5411934.5 Ops/sec
simple	5799710.0 Ops/sec
assigned	5746303.5 Ops/sec
simpleChild	5921567.5 Ops/sec
assignedArrow	5801664.0 Ops/sec
pure arrow	5366589.5 Ops/sec
pure binded	4908189.0 Ops/sec
pure assigned	5078473.0 Ops/sec
pure assignedArrow	5844389.0 Ops/sec
pure arrowGlobalCashed	5830752.5 Ops/sec
assignedArrowCashed	5293804.5 Ops/sec
assignedSimpleCashed	5237067.0 Ops/sec
arrow	5742510.5 Ops/sec

Script Preparation code:

let tmp = 0
class A {
  data = 0
  arrow = () => {
    this.data = this.data + 1
    return this
  }
  binded = (function() {
    this.data = this.data + 1
    return this
  }).bind(this)
  
  assigned = (() => {
    const self = this
	
    return function() {
      self.data = self.data + 1
      return self
    }
  })()
  assignedArrow = (() => {
    return () => {
      this.data = this.data + 1
      return this
    }
  })()
  simple() {
    this.data = this.data + 1
    return this
  }
  arrowGlobalCashed = () => {
    tmp = tmp + 1
    return this
  }
  assignedArrowCashed = (() => {
    let tmp = 0
    return () => {
      this.data = this.data + 1
      return this
    }
  })()
  assignedSimpleCashed = (() => {
    let tmp = 0
    const self = this
    return function() {
      tmp = tmp + 1
      return self
    }
  })()
}

class B extends A {
  simpleChild() {
    this.data = this.data + 1
    return this
  }
}
a = new A
b = new B

arrow = a.arrow
binded = a.binded
assigned = a.assigned
assignedArrow = a.assignedArrow
arrowGlobalCashed = a.arrowGlobalCashed
assignedArrowCashed = a.assignedArrowCashed
assignedSimpleCashed = a.assignedSimpleCashed

Tests:

binded
a.binded()
simple
b.simple()
assigned
a.assigned()
simpleChild
b.simpleChild()
assignedArrow
a.assignedArrow()
pure arrow
arrow()
pure binded
binded()
pure assigned
assigned()
pure assignedArrow
assignedArrow()
pure arrowGlobalCashed
arrowGlobalCashed()
assignedArrowCashed
assignedArrowCashed()
assignedSimpleCashed
assignedSimpleCashed()
arrow
a.arrow()

Run results for: arrow vs function test lalala

binded

simple

assigned

simpleChild

assignedArrow

pure arrow

pure binded

pure assigned

pure assignedArrow

pure arrowGlobalCashed

assignedArrowCashed

assignedSimpleCashed

arrow