Benchmark: Getting item by an index in json using for vs Object.keys vs Object.values

Script Preparation code:

var bigJSON = {};
for(var index = 0; index < 100000; index++) bigJSON[Math.random() * 453987] = Math.random() * 3579;
var bigTarget = 54365;

var smallJSON = {};
for(var index = 0; index < 100; index++) smallJSON[Math.random() * 4539] = Math.random() * 357;
var smallTarget = 54;

Tests:

for with a small json
var index = 0; var out; for(var key in smallJSON) { if(index++ != smallTarget) continue; out = smallJSON[key]; break; };
Object.keys with a small json
smallJSON[Object.keys(smallJSON)[smallTarget]];
Object.values with a small json
Object.values(smallJSON)[smallTarget]
for with a big json
var index = 0; var out; for(var key in bigJSON) { if(index++ != bigTarget) continue; out = bigJSON[key]; break; };
Object.keys with a big json
bigJSON[Object.keys(bigJSON)[bigTarget]];
Object.values with a big json
Object.values(bigJSON)[bigTarget]

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for with a small json
Object.keys with a small json
Object.values with a small json
for with a big json
Object.keys with a big json
Object.values with a big json

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0

Browser/OS: Firefox 100 on Windows

View result in a separate tab

Test name	Executions per second
for with a small json	4293085.0 Ops/sec
Object.keys with a small json	1263206.0 Ops/sec
Object.values with a small json	883448.3 Ops/sec
for with a big json	5521.8 Ops/sec
Object.keys with a big json	615.7 Ops/sec
Object.values with a big json	484.6 Ops/sec

Getting item by an index in json using for vs Object.keys vs Object.values (version: 2)

Comparing performance of: for with a small json vs Object.keys with a small json vs Object.values with a small json vs for with a big json vs Object.keys with a big json vs Object.values with a big json

Created: 2 years ago by: Registered User

Jump to the latest result

for with a small json

Object.keys with a small json

Object.values with a small json

for with a big json

Object.keys with a big json

Object.values with a big json

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A