MeasureThat.net

Run results for: Map vs Symbol Property

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
Chrome 104
Windows
Desktop
2 years ago
Test name Executions per second
WeakMap set 6627580.0 Ops/sec
Symbol Property set 6686966.5 Ops/sec
WeakMap get 6554743.0 Ops/sec
Symbol Property get 7040482.5 Ops/sec
Script Preparation code:
AخA
 
var to0 = {};
var to1 = {};
var wm = new Map();
var sy = Symbol();
wm.set(to1, 1);
to1[sy] = 1;
Tests:

  • WeakMap set

     
    wm.set(to0, 1);

  • Symbol Property set

     
    to0[sy] = 1;

  • WeakMap get

     
    let r = wm.get(to1);

  • Symbol Property get

     
    let r = to1[sy];