Run results for: Object.entries reduce vs lodash mapValues

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

lodash mapValues

531K/s

object.entries reduce

491K/s

View exact numbers

Test name	Executions per second
✓ lodash mapValues	530,628 Ops/sec
object.entries reduce	491,362 Ops/sec

HTML Preparation code:

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

Tests:

object.entries reduce
var fruits= { 'A': { 'name': 'apple', 'number': 5}, 'O': { 'name': 'orange', 'number': 10 }, 'B': { 'name': 'banana', 'number': 15 }, }; console.log( Object.entries(fruits).reduce( (acc, [key, value]) => { return { ...acc, [key]: value.name }; }, {} ) );
lodash mapValues
var fruits= { 'A': { 'name': 'apple', 'number': 5}, 'O': { 'name': 'orange', 'number': 10 }, 'B': { 'name': 'banana', 'number': 15 }, }; console.log( _.mapValues( fruits, (fruit) => ({ name: fruit.name }) ) );