Run results for: Switch vs Object Literal (fixed prep code)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36 Edg/101.0.1210.39

Browser: Chrome 101

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Switch	9602.9 Ops/sec
Object Literal	9796.2 Ops/sec

Script Preparation code:

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

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

var objLiteral = {
  a: function() {
    console.log('A');
  },
  b: function() {
    console.log('B');
  },
  c: function() {
    console.log('C');
  }
}

​x
 
var str = 'abc';str = str.charAt(Math.floor(Math.random() * 3));​function useSwitch(str) {    switch (str) {        case 'a':            console.log('A');            break;        case 'b':            console.log('B');            break;        case 'c':            console.log('C');            break;    }}​var objLiteral = {  a: function() {    console.log('A');  },  b: function() {    console.log('B');  },  c: function() {    console.log('C');  }}

Tests:

Switch
useSwitch(str);
useSwitch(str);
Object Literal
objLiteral[str]();
objLiteral[str]();