Run results for: Map.get vs Array.findIndex

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser: Chrome 132

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Map.get

217.7M/s

Array.findIndex

5K/s

View exact numbers

Test name	Executions per second
✓ Map.get	217,705,952 Ops/sec
Array.findIndex	5,396 Ops/sec

Script Preparation code:

var m = new Map();
var a = [];

for (var i = 1; i <= 100000; i++) {
  m.set('url_' + i, 'data');
  a.push({url: 'url_' + i, data: 'data'});
}

Tests: