Benchmark: map vs object - key access 2

Script Preparation code:

var items = Array.from(Array(100000), (_, x) => ({
    key: x,
    value: x * 10
}));

var objContainer = {};
var mapContainer = new Map();

for (let i = 100; i >= 0; i--) {
    const index = Math.floor(Math.random() * 1000);
    const item = items[index];
    objContainer[item.key] = item;
    mapContainer.set(item.key, item)
}

Tests:

Object access
items.forEach(item => objContainer[item.value])
Map get
items.forEach(item => mapContainer.get(item.value))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object access
Map get

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 3 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2.1 Safari/605.1.15

Browser/OS: Safari 17 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Object access	187.4 Ops/sec
Map get	200.7 Ops/sec

map vs object - key access 2 (version: 0)

Comparing performance of: Object access vs Map get

Created: 2 years ago by: Guest

Jump to the latest result

Object access

Map get

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A