Benchmark: non empty object

Script Preparation code:

function createObj(len) {
  const obj = {};
  
  for (let i=0;i<25;i++) {
  	obj[(Math.random*Math.random()).toString()] = (Math.random()*Math.random()) / Math.random()
  }
  
  return obj;
}

Tests:

Object.getOwnPropertyNames
const obj = createObj(); const notEmpty = o => Object.getOwnPropertyNames(o).length > 0; console.log(notEmpty(obj))
Object.keys
const obj = createObj(); const notEmpty = o => Object.keys(o).length > 0; console.log(notEmpty(obj))
for .. in
const obj = createObj(); const notEmpty = o => { for (const k in o) { if (o.hasOwnProperty(k)) return true; } return false; } console.log(notEmpty(obj))
for .. of Object.getOwnPropertyNames
const obj = createObj(); const notEmpty = o => { for (const k of Object.getOwnPropertyNames(o)) { if (o.hasOwnProperty(k)) return true; } return false; } console.log(notEmpty(obj))
JSON
const obj = createObj(); const notEmpty = o => { return JSON.stringify(o)!=='{}'; } console.log(notEmpty(obj))
Reflect
const obj = createObj(); const notEmpty = o => { return Reflect.ownKeys(o).length > 0 } console.log(notEmpty(obj))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.getOwnPropertyNames
Object.keys
for .. in
for .. of Object.getOwnPropertyNames
JSON
Reflect

non empty object (version: 0)

Comparing performance of: Object.getOwnPropertyNames vs Object.keys vs for .. in vs for .. of Object.getOwnPropertyNames vs JSON vs Reflect

Created: one year ago by: Guest

Jump to the latest result

Object.getOwnPropertyNames

Object.keys

for .. in

for .. of Object.getOwnPropertyNames

JSON

Reflect

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

No previous run results