Run results for: Consume Object.entries vs for..in vs for..in fn 22222

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0

Browser: Firefox 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Tests:

Object.entries
for (let i = 0; i < 10000; i++) { for (let entries = Object.entries(obj), i = entries.length - 1; i >= 0; i--) { console.log(entries[i]) } }
for..in
for (let i = 0; i < 10000; i++) { for (let key in obj) { if (obj.hasOwnProperty(key)) { console.log([key, obj[key]]) } } }
Object.keys
for (let i = 0; i < 10000; i++) { for (let keyArray = Object.keys(obj), i = keyArray.length - 1, key = keyArray[i]; i >= 0; key = keyArray[--i]) { console.log([key, obj[key]]); } }
Object.keys no entry
for (let i = 0; i < 10000; i++) { for (let keyArray = Object.keys(obj), i = keyArray.length - 1, key = keyArray[i]; i >= 0; key = keyArray[--i]) { console.log(key, obj[key]); } }
for..in no array
for (let i = 0; i < 10000; i++) { for (let key in obj) { if (obj.hasOwnProperty(key)) { console.log(key, obj[key]) } } }
Object.entries no array
for (let i = 0; i < 10000; i++) { for (let entries = Object.entries(obj), i = entries.length - 1, entry = entries[i]; i >= 0; entry = entries[i--]) { console.log(entry[0], entry[1]) } }