Run results for: Generator vs function

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4503.0 Safari/537.36

Browser: Chrome 92

Operating system: Mac OS X 10.13.6

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Generator	110962.4 Ops/sec
Es6 reduce	12817.2 Ops/sec

Tests:

Generator
function* fibonacci(n) { const infinite = !n && n !== 0 let current = 0 let next = 1 while (infinite || n--) { yield current; [current, next] = [next, current + next] } } const [...first100] = fibonacci(100);
Es6 reduce
const fibonacci = n => Array.from({ length: n }).reduce( (acc, val, i) => acc.concat(i > 1 ? acc[i - 1] + acc[i - 2] : i), [] ); const [...first100] = fibonacci(100);