Run results for: function vs arrow

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 12_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/16.2b14898 Mobile/15E148 Safari/605.1.15

Browser: Mobile Safari 12

Operating system: iOS 12.2

Device Platform: Mobile

Date tested: 5 years ago

Test name	Executions per second
function	2432476.8 Ops/sec
arrow	1617343.4 Ops/sec
arrow-direct	4923809.0 Ops/sec
arrow-direct2	5651794.0 Ops/sec

Tests:

function
const array = [1, 2, 3, 4, 5]; const filtered = array.filter(function(d) { return d % 2 === 0; });
arrow
const array = [1, 2, 3, 4, 5]; const filtered = array.filter((d) => { return d % 2 === 0; });
arrow-direct
const array = [1, 2, 3, 4, 5]; const filtered = array.filter(d => d % 2 === 0);
arrow-direct2
const array = [1, 2, 3, 4, 5]; const filtered = array.filter((d) => d % 2 === 0);

Run results for: function vs arrow

function

arrow

arrow-direct

arrow-direct2