Benchmark: Object.fromEntries + Object.entries vs Object.keys

Script Preparation code:

var obj = {v1: {value: 'string', num: 123, obj: {boo: true, arr: [{str: 'string'},{str: 'string'},{str: 'string'},{str: 'string'},{str: 'string'}]}}, v2: {value: 'string', num: 123, obj: {boo: true, arr: [{str: 'string'},{str: 'string'},{str: 'string'},{str: 'string'},{str: 'string'}]}}}

Tests:

Object.fromEntries + Object.entries
JSON.stringify(Object.fromEntries(Object.entries(obj).map(([key, value]) => [key, {...value, obj: value.obj.arr}])))
Object.keys
const newObj = {} Object.keys(obj).forEach(key => { newObj[key] = { ...obj[key], ccSubset: obj[key]?.ccSubset?.ccSubset }; }); JSON.stringify(newObj)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.fromEntries + Object.entries
Object.keys

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one month ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:124.0) Gecko/20100101 Firefox/124.0

Browser/OS: Firefox 124 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Object.fromEntries + Object.entries	1478252.0 Ops/sec
Object.keys	1423033.0 Ops/sec

Object.fromEntries + Object.entries vs Object.keys (version: 0)

Comparing performance of: Object.fromEntries + Object.entries vs Object.keys

Created: 2 years ago by: Guest

Jump to the latest result

Object.fromEntries + Object.entries

Object.keys

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A