Run results for: Array.find vs Array.filter on large dataset

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36 OPR/107.0.0.0 (Edition Yx GX)

Browser: Opera 107

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Find without default

29K/s

Find with default

29K/s

Filter

885/s

View exact numbers

Test name	Executions per second
✓ Find without default	29,013 Ops/sec
Find with default	28,989 Ops/sec
Filter	885 Ops/sec

Script Preparation code:

var total = [];
var ids = [10000, 14000, 19999];
for (var i = 0; i < 20000; i++) {
  total.push({id: i, value: Math.floor(Math.random() * 1000)});
}

Tests:

Filter
total.filter((item) => ids.includes(item.id));
Find with default
ids.map((id) => total.find((item) => item.id === id)).filter((item) => !!item) ?? []
Find without default
ids.map((id) => total.find((item) => item.id === id))