Run results for: Javascript unique string array

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser: Chrome 107

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Using an object	3756201.5 Ops/sec
Using a Set	1936212.0 Ops/sec

Tests:

Using an object
const nonUnique = ['one', 'two', 'three', 'three', 'four', 'four', 'five', 'six', 'seven', 'eight', 'nine']; const unique = Object.keys(nonUnique.reduce((acc, item) => { if (!acc[item]) { acc[item] = true }; return acc; }, {}));
Using a Set
const nonUnique = ['one', 'two', 'three', 'three', 'four', 'four', 'five', 'six', 'seven', 'eight', 'nine']; const unique = Array.from(new Set(nonUnique));