Run results for: Switch vs Object Literal Two Point Zero Two Onee

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.87 Safari/537.36

Browser: Chrome 78

Operating system: Linux

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Switch	92319.4 Ops/sec
Object Literal	84619.3 Ops/sec

Script Preparation code:

var str = 'abc';
str = str.charAt(Math.floor(Math.random() * 3));

AخA
 
var str = 'abc';str = str.charAt(Math.floor(Math.random() * 3));

Tests:

Switch

switch (str) {
  case 'a': console.log('A'); break;
  case 'b': console.log('B'); break;
  case 'c': console.log('C'); break;
}

 
switch (str) {  case 'a': console.log('A'); break;  case 'b': console.log('B'); break;  case 'c': console.log('C'); break;}

Object Literal

const a = () => console.log('A')
const b = () => console.log('B')
const c = () => console.log('C')
const objLiteral = {
  a: a,
  b: b,
  c: c
}

objLiteral[str]();

​x
 
const a = () => console.log('A')const b = () => console.log('B')const c = () => console.log('C')const objLiteral = {  a: a,  b: b,  c: c}​objLiteral[str]();