Run results for: Switch vs Object Function vs Object Property

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 13_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 [FBAN/FBIOS;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/13.3;FBSS/2;FBID/phone;FBLC/pt_BR;FBOP/5;FBCR/TIM]

Browser: Mobile Safari 13

Operating system: iOS 13.3

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
Switch	1173011.6 Ops/sec
Object Function	1108220.2 Ops/sec
Object Property	1154710.0 Ops/sec

Script Preparation code:

var str = 'abc';
str = str.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 Function
const obj = { a: () => 'A', b: () => 'B', c: () => 'C' }; console.log(obj[str]());
Object Property
const obj = { a: 'A', b: 'B', c: 'C' }; console.log(obj[str]);

Run results for: Switch vs Object Function vs Object Property

Compares performance of using a 'switch' statement vs object functions and object properties

Switch

Object Function

Object Property