Benchmark: Object creation from property array, manual vs Object.fromEntries

Script Preparation code:

var properties = Array.from({ length: 1000 }, () => [Math.random().toString(), Math.random()])

Tests:

Manual
const result = {} for (const [key, value] of properties) { result[key] = value + 1 }
Object.fromEntries
const result = Object.fromEntries(properties)
Object.fromEntries and Array.map
const result = Object.fromEntries(properties.map(([key,value]) => [key, value + 1]))

Rendered benchmark preparation results:

Previous results

Test case name	Result
Manual
Object.fromEntries
Object.fromEntries and Array.map

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Latest run results:

Run details: (Test run date: 12 days ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser/OS: Chrome 124 on Linux

Test name	Executions per second
Manual	20039.7 Ops/sec
Object.fromEntries	3650.7 Ops/sec
Object.fromEntries and Array.map	3353.7 Ops/sec

Object creation from property array, manual vs Object.fromEntries (version: 0)