Run results for: set vs weakset

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Browser: Chrome 127

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

weak set

11.4M/s

set

11.4M/s

View exact numbers

Test name	Executions per second
✓ weak set	11,446,809 Ops/sec
set	11,371,250 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)