Run results for: contains duplicate

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/113.0

Browser: Firefox 113

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
nested loops	1964899.9 Ops/sec
without loops	1322669.6 Ops/sec

Tests:

nested loops
const array = [1, 2, 3, 4, 5, 1]; let flag = false const truth = () => { for (i = 0; i < array.length ,!flag; i++) for (j = 0; j < array.length; j++) array[i] == array[j] && (flag = true); }; truth()
without loops
const array = [1, 2, 3, 4, 5, 1]; const truth = () => { let settedArray = new Set(array) return settedArray.size == array.length } truth()