Benchmark: Object.keys vs lodash _.keys

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var value = {a: 30310, b: '100303', c: '3040494'}

Tests:

_.keys with map
_.keys(value).map( function(key){ return {value: _.camelCase(key), label: _.startCase(key)}} )
native with map
Object.keys(value).map( function(key){ return {value: _.camelCase(key), label: _.startCase(key)}} )
native with forEach
var arr = [] Object.keys(value).forEach( function(key){ return arr.push({value: _.camelCase(key), label: _.startCase(key)}) } )

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.keys with map
native with map
native with forEach

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 4 months ago)

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_1_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1.2 Mobile/15E148 Safari/604.1

Browser/OS: Mobile Safari 17 on iOS 17.1.2

View result in a separate tab

Test name	Executions per second
_.keys with map	326776.0 Ops/sec
native with map	326928.2 Ops/sec
native with forEach	311067.1 Ops/sec

Object.keys vs lodash _.keys (version: 3)

Also checking the .map method on the returned array.

Comparing performance of: _.keys with map vs native with map vs native with forEach

Created: 7 years ago by: Registered User

Jump to the latest result

_.keys with map

native with map

native with forEach

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A