Run results for: Switch vs Object Literal defined once

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.72 Safari/537.36

Browser: Chrome 90

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Switch	190828.4 Ops/sec
Object Literal	157403.7 Ops/sec

Script Preparation code:

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

Tests:

Switch
switch (str) { case 'a': console.log('A'); break; case 'b': console.log('B'); break; case 'c': console.log('C'); break; }
Object Literal
objLiteral[str]();