Benchmark: Splice vs Spread to insert at beginning of array

Script Preparation code:

var array = Array.from({ length: 100 }).map((val, i) => i);

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
Splice
Spread

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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/79.0.3945.130 Safari/537.36

Browser/OS: Chrome 79 on Windows

Test name	Executions per second
Splice	11036330.0 Ops/sec
Spread	1864113.0 Ops/sec

Splice vs Spread to insert at beginning of array (version: 0)