Run results for: testjhj - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:89.0) Gecko/20100101 Firefox/89.0

Browser: Firefox 89

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
1	1484072.0 Ops/sec
2	1498783.0 Ops/sec

Tests:

1
function findSingle(arr) { let singleOccurence = null; arr.forEach((item) => { let count = arr.filter(i => i === item).length; if (count === 1) { singleOccurence = item; } }); return singleOccurence; } const arr = [10, 2, 2 , 1, 0, 0, 10]; findSingle(arr);
2
function findSingle(arr) { let singleOccurence = null; for (let i = 0; i < arr.length; i++) { let count = arr.filter(el => el === arr[i]).length; if (count === 1) { singleOccurence = arr[i]; break; } } return singleOccurence; } const arr = [10, 2, 2 , 1, 0, 0, 10]; findSingle(arr);