Benchmark: Array vs Object vs Map vs WeakMap access (123123)

Script Preparation code:

var map = new Map([["0",1]]);

var array = [1];

var symbol = Symbol('next');
var object = {["0"]: 1, [symbol]: 1 };
var weakMap = new WeakMap([[object,1]])
var x = 0;

Tests:

Map.get
x += map.get("0");
WeakMap.get
x += weakMap.get(object)
array[0]
x += array[0]
object.a
x += object.a
object[symbol]
x += object[symbol]

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Map.get
WeakMap.get
array[0]
object.a
object[symbol]

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

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

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 122 on Android

View result in a separate tab

Test name	Executions per second
Map.get	1264033.0 Ops/sec
WeakMap.get	991640.4 Ops/sec
array[0]	1304016.0 Ops/sec
object.a	1303644.0 Ops/sec
object[symbol]	931890.5 Ops/sec

Array vs Object vs Map vs WeakMap access (123123) (version: 0)

Comparing performance of: Map.get vs WeakMap.get vs array[0] vs object.a vs object[symbol]

Created: one month ago by: Guest

Jump to the latest result

Map.get

WeakMap.get

array[0]

object.a

object[symbol]

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A