Benchmark: Object.assign vs spread operatordd

Tests:

Object.assign
var params = { b:"hello", c: true, d:7 }; var other = Object.assign({ a: 2 }, params);
spread operator
var params = { b:"hello", c: true, d:7 }; var other = { a: 2, ...params };

Rendered benchmark preparation results:

Previous results

Test case name	Result
Object.assign
spread operator

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.106 Safari/537.36

Browser/OS: Chrome 80 on Mac OS X 10.14.6

Test name	Executions per second
Object.assign	4794785.0 Ops/sec
spread operator	14502770.0 Ops/sec

Object.assign vs spread operatordd (version: 0)