Run results for: builtin plus operator vs. custom sum method

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36

Browser: Chrome 91

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
builtin plus operator	964497984.0 Ops/sec
custom sum method	70053664.0 Ops/sec

Tests:

builtin plus operator
const sum = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9;
custom sum method
function getSum(...args) { return args.reduce((a, b) => a + b, 0); } const sum = getSum(1, 2, 3, 4, 5, 6, 7, 8, 9);