Benchmark: compare math.pow and ** operator

Tests:

math.pow
var fooSet = new Set(); for(var i=0;i<53;i++) { fooSet.add(2**i - 1); } var other = [...fooSet];
**
var fooSet = new Set(); for(var i=0;i<53;i++) { fooSet.add(Math.pow(2, i) - 1); } var other = [...fooSet];

Rendered benchmark preparation results:

Previous results

Test case name	Result
math.pow
**

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Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Browser/OS: Chrome 74 on Windows

Test name	Executions per second
math.pow	110918.0 Ops/sec
**	46220.9 Ops/sec

compare math.pow and ** operator (version: 0)