Run results for: Switch vs Object Literal methods

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36

Browser: Chrome 91

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Switch	16347.3 Ops/sec
Object Literal	20609.8 Ops/sec

Script Preparation code:

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

Tests:

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