Run results for: if-else vs switch-case vs object literals vs ternary-operator 3

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser: Chrome 138

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Object literals

206.6M/s

ternary-operator

203.4M/s

If - Else

194.0M/s

Switch - Case

192.2M/s

View exact numbers

Script Preparation code:

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

Tests:

If - Else
let x; if(str === 'a'){ x = 'A'; } else if (str === 'b'){ x = 'B'; } else if (str === 'c'){ x = 'C'; }
Switch - Case
let x; switch (str) { case 'a': x = 'A'; break; case 'b': x = 'B'; break; case 'c': x = 'C'; break; }
Object literals
var objLiteral = { a: 'A', b: 'B', c: 'C', } let x = objLiteral[str];
ternary-operator
let x = str === 'a' ? 'A' : str === 'b' ? 'B' : str === 'c' ? 'C' : 'nothing'