Run results for: shift vs no shift

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.80 Safari/537.36

Browser: Chrome 86

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
with	2178434.0 Ops/sec
without	10575080.0 Ops/sec

Tests:

with
function twoNumberSum(array, targetSum) { let result = []; array.forEach( (element, idx) => { array.forEach((secondElement, secondIdx) => { if ((idx !== secondIdx) && (element + secondElement == targetSum)) { result = [element, secondElement]; } array.shift(); }) } ) return result; } twoNumberSum([3, 5, -4, 8, 11, 1, -1, 6],10)
without
function twoNumberSum(array, targetSum) { let result = []; array.forEach( (element, idx) => { array.forEach((secondElement, secondIdx) => { if ((idx !== secondIdx) && (element + secondElement == targetSum)) { result = [element, secondElement]; } }) } ) return result; } twoNumberSum([3, 5, -4, 8, 11, 1, -1, 6],10)