Benchmark: object assign vs direct assignment

Tests:

direct assignment
const obj = { name: 'Japan' }; const names = [ { name: 'Japan', from: '2017-09-09T09:00:32Z', to: '' }, { name: 'Japannnnn', from: '2015-01-13T14:11:43Z', to: '2017-09-09T09:00:32Z' }, { name: 'Japannnnn', from: '', to: '2015-01-13T14:11:43Z' } ]; obj.names = names;
obj.assign
const obj = { name: 'Japan' }; const names = [ { name: 'Japan', from: '2017-09-09T09:00:32Z', to: '' }, { name: 'Japannnnn', from: '2015-01-13T14:11:43Z', to: '2017-09-09T09:00:32Z' }, { name: 'Japannnnn', from: '', to: '2015-01-13T14:11:43Z' } ]; Object.assign(obj, { names });

Rendered benchmark preparation results:

Previous results

Test case name	Result
direct assignment
obj.assign

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Browser/OS: Chrome 103 on Windows

Test name	Executions per second
direct assignment	1026718000.0 Ops/sec
obj.assign	5626335.0 Ops/sec

object assign vs direct assignment (version: 0)