Run results for: WeakMap vs Symbol Property

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Linux

Device Platform: Desktop

Date tested: 7 months ago

Symbol Property get

1301.5M/s

Symbol Property set

1213.5M/s

WeakMap get

57.2M/s

WeakMap set

33.5M/s

View exact numbers

Script Preparation code:

var to0 = {};
var to1 = {};
var wm = new WeakMap();
var sy = Symbol();
wm.set(to1, 1);
to1[sy] = 1;

Tests: