Run results for: Switch vs Object Literal - testing with simpler data

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.3 Safari/605.1.15

Browser: Safari 15

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Switch	1450872.4 Ops/sec
Object Literal	1353441.9 Ops/sec

Script Preparation code:

var animal = "dog"

AخA
 
var animal = "dog"

Tests:

Switch

function test(animal) {
  switch(animal){
   case 'cat': return 'Kitten'
   case 'cattle': return 'Calf'
   case 'cheetah': return 'Cub'
   case 'dog': return 'Pup'
   default: return "I don't know that"
}
}


console.log(test(animal))

​x
 
function test(animal) {  switch(animal){   case 'cat': return 'Kitten'   case 'cattle': return 'Calf'   case 'cheetah': return 'Cub'   case 'dog': return 'Pup'   default: return "I don't know that"}}​​console.log(test(animal))

Object Literal

function test(animal) {
  var babyAnimal = {
   cat:'Kitten',
   cattle:'Calf',
   cheetah:'Cub',
   dog:'Pup'
}

return babyAnimal[animal] ?? "I don't know that"
}

console.log(test(animal))

 
function test(animal) {  var babyAnimal = {   cat:'Kitten',   cattle:'Calf',   cheetah:'Cub',   dog:'Pup'}​return babyAnimal[animal] ?? "I don't know that"}​console.log(test(animal))