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Compare Object.keys and Object.entries with array v2
(version: 1)
Comparing performance of:
Object.keys vs Object.entries vs Object.entries with map
Created:
one year ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
function makeid() { var text = ""; var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; for (var i = 0; i < 5; i++) text += possible.charAt(Math.floor(Math.random() * possible.length)); return text; } window.parentObj = {}; for (let i = 0; i < 100; i++) { window.parentObj[makeid()] = makeid(); }
Tests:
Object.keys
const array = []; const keys = Object.keys(window.parentObj); for (const k of keys) { array.push(window.parentObj[k]); }
Object.entries
const array = []; const entries = Object.entries(window.parentObj); for (const [k, v] of entries) { array.push(v); }
Object.entries with map
const array = Object.entries(window.parentObj).map(([k, v]) => v);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
Object.keys
Object.entries
Object.entries with map
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36
Browser/OS:
Chrome 135 on Mac OS X 10.15.7
View result in a separate tab
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Embed Benchmark Result
Test name
Executions per second
Object.keys
195468.2 Ops/sec
Object.entries
69006.3 Ops/sec
Object.entries with map
62484.1 Ops/sec
Related benchmarks:
Object.entries VS Object.keys
Object.entries VS Object.keys.map
Object.entries VS Object.keys.map 2
Object.values VS Object.keys.map 2
Object.entries VS Object.keys VS Object.entries with for of
Object.entries VS Object.keys [simple]
Object.entries VS Object.keys for count
Compare Object.keys and Object.entries
Compare Object.keys and Object.entries with array
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