Benchmark: Array.prototype.concat vs spread operator.

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = params.concat(params);
spread operator
var params = [ "hello", true, 7 ] var other = [...params, ...params ]

Rendered benchmark preparation results:

Previous results

Test case name	Result
Array.prototype.concat
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/78.0.3904.70 Safari/537.36

Browser/OS: Chrome 78 on Mac OS X 10.14.6

Test name	Executions per second
Array.prototype.concat	5421919.0 Ops/sec
spread operator	18908830.0 Ops/sec

Array.prototype.concat vs spread operator. (version: 0)