Run results for: Object.keys VS JSON.stringify() for empty objects and arrays

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36 OPR/115.0.0.0 (Edition Yx 05)

Browser: Opera 115

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Object.keys()

49.7M/s

JSON.stringify()

9.3M/s

View exact numbers

Test name	Executions per second
✓ Object.keys()	49,670,844 Ops/sec
JSON.stringify()	9,316,614 Ops/sec

Script Preparation code:

var obj = {}
var arr = [];

Tests:

Object.keys()
Object.keys(arr) === 0 Object.keys(obj) === 0
JSON.stringify()
JSON.stringify(obj) === "{}" JSON.stringify(arr) === "[]"

Run results for: Object.keys VS JSON.stringify() for empty objects and arrays

You don't need to make add for loops in your test scenarios, the benchmark does it itself.

Object.keys()

JSON.stringify()