Benchmark: Set vs array.includes

Tests:

new Set(...)
const strings = ['russia', 'usa', 'russia', 'france', 'russia', 'spain']; let result = []; for(let i = 0; i < 100; ++i) { const cities = strings.reduce((acc, item) => { return [...acc, item]; }, []); [...new Set(cities)]; }
array.includes
const strings = ['russia', 'usa', 'russia', 'france', 'russia', 'spain']; for(let i = 0; i < 100; ++i) { const cities = strings.reduce((acc, item) => { if (!acc.includes(item)) { return [...acc, item]; } return acc; }, []); }

Rendered benchmark preparation results:

Previous results

Test case name	Result
new Set(...)
array.includes

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser/OS: Chrome 130 on Windows

Test name	Executions per second
new Set(...)	19696.7 Ops/sec
array.includes	47255.2 Ops/sec

Set vs array.includes (version: 0)