Benchmark: object Array Test

keys

const testObj = {
	'10:00': 1,
  	'11:00': 20,
  	'12:00': 30,
  	'13:00': 2,
  	'14:00': 40,
  	'15:00': 30,
  	'16:00': 5,
  	'17:00': 50,
  	'18:00': 60,
  	'19:00': 70,
 	'20:00': 7,
  	'21:00': 80,
  	'22:00': 8,
  	'23:00': 38,
  	'24:00': 21,
  	'25:00': 40,
  	'26:00': 51,
  	'27:00': 62,
  	'28:00': 72,
  	'29:00': 31,
  	'30:00': 41,
  	'31:00': 51,
  	'32:00': 64,
  	'33:00': 74,
  	'34:00': 84,
  	'35:00': 36,
  	'36:00': 76,
  	'37:00': 38,
  	'38:00': 48,
  	'39:00': 58,
  	'40:00': 68,
  	'41:00': 88,
  	'42:00': 17,
  	'43:00': 27,
  	'44:00': 37,
  	'45:00': 57,
  	'46:00': 67,
  	'47:00': 77,
  	'48:00': 87,
  	'49:00': 97,
}

const list = Object.keys(testObj).map(key => ({name: key, number: testObj[key]}));
console.log(list)

reduce

const testObj = {
	'10:00': 1,
  	'11:00': 20,
  	'12:00': 30,
  	'13:00': 2,
  	'14:00': 40,
  	'15:00': 30,
  	'16:00': 5,
  	'17:00': 50,
  	'18:00': 60,
  	'19:00': 70,
 	'20:00': 7,
  	'21:00': 80,
  	'22:00': 8,
  	'23:00': 38,
  	'24:00': 21,
  	'25:00': 40,
  	'26:00': 51,
  	'27:00': 62,
  	'28:00': 72,
  	'29:00': 31,
  	'30:00': 41,
  	'31:00': 51,
  	'32:00': 64,
  	'33:00': 74,
  	'34:00': 84,
  	'35:00': 36,
  	'36:00': 76,
  	'37:00': 38,
  	'38:00': 48,
  	'39:00': 58,
  	'40:00': 68,
  	'41:00': 88,
  	'42:00': 17,
  	'43:00': 27,
  	'44:00': 37,
  	'45:00': 57,
  	'46:00': 67,
  	'47:00': 77,
  	'48:00': 87,
  	'49:00': 97,
}

const list = Object.keys(testObj).reduce((acc, curr) => { return [...acc, {name: curr, number: testObj[curr] }] }, [])
console.log(list)

for..in

const testObj = {
	'10:00': 1,
  	'11:00': 20,
  	'12:00': 30,
  	'13:00': 2,
  	'14:00': 40,
  	'15:00': 30,
  	'16:00': 5,
  	'17:00': 50,
  	'18:00': 60,
  	'19:00': 70,
 	'20:00': 7,
  	'21:00': 80,
  	'22:00': 8,
  	'23:00': 38,
  	'24:00': 21,
  	'25:00': 40,
  	'26:00': 51,
  	'27:00': 62,
  	'28:00': 72,
  	'29:00': 31,
  	'30:00': 41,
  	'31:00': 51,
  	'32:00': 64,
  	'33:00': 74,
  	'34:00': 84,
  	'35:00': 36,
  	'36:00': 76,
  	'37:00': 38,
  	'38:00': 48,
  	'39:00': 58,
  	'40:00': 68,
  	'41:00': 88,
  	'42:00': 17,
  	'43:00': 27,
  	'44:00': 37,
  	'45:00': 57,
  	'46:00': 67,
  	'47:00': 77,
  	'48:00': 87,
  	'49:00': 97,
}


let arr =[];

for(let i in testObj) { arr.push({ name: i, number: testObj[i] }); }
console.log(arr)

entries

const testObj = {
	'10:00': 1,
  	'11:00': 20,
  	'12:00': 30,
  	'13:00': 2,
  	'14:00': 40,
  	'15:00': 30,
  	'16:00': 5,
  	'17:00': 50,
  	'18:00': 60,
  	'19:00': 70,
 	'20:00': 7,
  	'21:00': 80,
  	'22:00': 8,
  	'23:00': 38,
  	'24:00': 21,
  	'25:00': 40,
  	'26:00': 51,
  	'27:00': 62,
  	'28:00': 72,
  	'29:00': 31,
  	'30:00': 41,
  	'31:00': 51,
  	'32:00': 64,
  	'33:00': 74,
  	'34:00': 84,
  	'35:00': 36,
  	'36:00': 76,
  	'37:00': 38,
  	'38:00': 48,
  	'39:00': 58,
  	'40:00': 68,
  	'41:00': 88,
  	'42:00': 17,
  	'43:00': 27,
  	'44:00': 37,
  	'45:00': 57,
  	'46:00': 67,
  	'47:00': 77,
  	'48:00': 87,
  	'49:00': 97,
}
const list = Object.entries(testObj).map(([name, number]) => ({ name: name, number})); 
console.log(list)

Test name	Executions per second
keys	63537.9 Ops/sec
reduce	55976.6 Ops/sec
for..in	66203.2 Ops/sec
entries	64760.2 Ops/sec

object Array Test (version: 0)

Comparing performance of: keys vs reduce vs for..in vs entries

Created: one year ago by: Guest

Jump to the latest result

keys

reduce

for..in

entries

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one month ago):