Run results for: set vs weakset

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser: Chrome 128

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

set

17.8M/s

weak set

17.4M/s

View exact numbers

Test name	Executions per second
✓ set	17,784,222 Ops/sec
weak set	17,449,086 Ops/sec

Script Preparation code:

var objs = Array(100).fill().map(() => { return {} })
var obj = objs[50]

var set = new Set()
var weakset = new WeakSet()

var times = 100
while (times--) {
	set.add(objs[times])
	weakset.add(objs[times])
}

Tests:

set
set.has(obj)
weak set
weakset.has(obj)