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	5336802.5 Ops/sec
simple	5772967.5 Ops/sec
assigned	5599869.0 Ops/sec
simpleChild	5578937.5 Ops/sec
assignedArrow	5434646.5 Ops/sec
pure arrow	5040047.0 Ops/sec
pure binded	4334040.0 Ops/sec
pure assigned	3868332.8 Ops/sec
pure assignedArrow	2076124.0 Ops/sec
pure arrowGlobalCashed	1797564.6 Ops/sec
assignedArrowCashed	1270855.0 Ops/sec
assignedSimpleCashed	1718497.8 Ops/sec
arrow	1428731.8 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