Run results for: Switch vs Object Literal vs If Else vs Map - testing with simpler data again

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.3.1

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Switch	1213391.0 Ops/sec
Object Literal	1199125.0 Ops/sec
If Else	1188573.2 Ops/sec
Object Literal defined outside function	1134464.1 Ops/sec
Map	923441.9 Ops/sec
Map - defined outsid function	1175089.0 Ops/sec

Script Preparation code:

var map2 = new Map();

map2.set('cat', 'Kitten');
map2.set('cattle', 'Calf');
map2.set('cheetah', 'Cub');
map2.set('dog', 'Pup');

var babyAnimal2 = {
    cat: 'Kitten',
    cattle: 'Calf',
    cheetah: 'Cub',
    dog: 'Pup'
}

Tests:

Switch
var animal = ["dog", "cat", "cattle", "cheetah"][Math.floor(Math.random() * 4)] 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
var animal = ["dog", "cat", "cattle", "cheetah"][Math.floor(Math.random() * 4)] 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))
If Else
var animal = ["dog", "cat", "cattle", "cheetah"][Math.floor(Math.random() * 4)] function test(animal) { if(animal==='cat'){ return 'Kitten' } else if(animal=='cattle'){ return 'Calf' } else if(animal==='cheetah'){ return 'Cub'; } else if(animal==='dog'){ return 'Pup'; } return "I don't know that" } console.log(test(animal))
Object Literal defined outside function
var animal = ["dog", "cat", "cattle", "cheetah"][Math.floor(Math.random() * 4)] function test(animal) { return babyAnimal2[animal] ?? "I don't know that" } console.log(test(animal))
Map
var animal = ["dog", "cat", "cattle", "cheetah"][Math.floor(Math.random() * 4)] function test(animal) { const map1 = new Map(); map1.set('cat', 'Kitten'); map1.set('cattle', 'Calf'); map1.set('cheetah', 'Cub'); map1.set('dog', 'Pup'); return map1.get(animal) || "I don't know that" } console.log(test(animal))
Map - defined outsid function
var animal = ["dog", "cat", "cattle", "cheetah"][Math.floor(Math.random() * 4)] function test(animal) { return map2.get(animal) || "I don't know that" } console.log(test(animal))

Run results for: Switch vs Object Literal vs If Else vs Map - testing with simpler data again

Switch

Object Literal

If Else

Object Literal defined outside function

Map

Map - defined outsid function