Benchmark: Object.assign vs direct assignment (Improved cases)

Script Preparation code:

var data = {};

Tests:

Direct Assignment
for(var i = 0; i < 10000; i++) { data[`prop_${i}`] = null; }
Object.assign
for(var i = 0; i < 10000; i++) { Object.assign(data, { [`prop_${i}`]: null }); }

Rendered benchmark preparation results:

Previous results

Test case name	Result
Direct Assignment
Object.assign

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36 Edg/91.0.864.37

Browser/OS: Chrome 91 on Mac OS X 10.15.7

Test name	Executions per second
Direct Assignment	612.7 Ops/sec
Object.assign	150.5 Ops/sec

Object.assign vs direct assignment (Improved cases) (version: 0)