Run results for: for i versus map

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser: Chrome 114

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
for i	225522.8 Ops/sec
filter and map	233530.8 Ops/sec

Tests:

for i
const array1 = [2, 4, 6, 8, 10]; const array2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; const filteredArray2 = []; for (let i = 0; i < array2.length; i++) { if (array1.includes(array2[i])) { filteredArray2.push(array2[i]); } } const orderedArray2 = []; for (let i = 0; i < array1.length; i++) { for (let j = 0; j < filteredArray2.length; j++) { if (array1[i] === filteredArray2[j]) { orderedArray2.push(filteredArray2[j]); break; } } } console.log(orderedArray2);
filter and map
const array1 = [2, 4, 6, 8, 10]; const array2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; const filteredArray2 = array2.filter(value => array1.includes(value)); const orderedArray2 = array1.map(value => filteredArray2.find(item => item === value)); console.log(orderedArray2);