Run results for: lodash omit vs map

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.6.1

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

map

18.3M/s

omit

1.3M/s

View exact numbers

Test name	Executions per second
✓ map	18,342,558 Ops/sec
omit	1,284,061 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

omit
var a = [{ a: 'oh', b: 3}, { a: 'my', b: 2}, {a: 'e', b: 1}]; var c = _.omit(a, ['b']);
map
var a = [{ a: 'oh', b: 3}, { a: 'my', b: 2}, {a: 'e', b: 1}]; var c = a.map(a => { delete a.b return a });