Benchmark: WeakMap vs property access vs array[0] vs symbol access

Script Preparation code:

var weakMap = new WeakMap()
var symbol = Symbol('next');
var object = { a: 1, [symbol]: 1 };
weakMap.set(object, 1);
var array = [1];

Tests:

Rendered benchmark preparation results:

Previous results

Latest run results:

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

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.6668.100 Mobile Safari/537.36

Browser/OS: Chrome Mobile 129 on Android

object.a

674.6M/s

array[0]

673.6M/s

WeakMap.get

16.1M/s

object[symbol]

12.2M/s

View exact numbers

WeakMap vs property access vs array[0] vs symbol access (version: 2)