Benchmark: set array index: slice vs Object.assign

Tests:

splice
var index = 2; var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; var output = [ ...array.slice(0, index), 10, ...array.slice(index + 1) ];
Object.assign
var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; var output = Object.assign([], array, {2: 10});

Rendered benchmark preparation results:

Previous results

Test case name	Result
splice
Object.assign

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Latest run results:

Run details: (Test run date: 5 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:120.0) Gecko/20100101 Firefox/120.0

Browser/OS: Firefox 120 on Windows

Test name	Executions per second
splice	3538480.0 Ops/sec
Object.assign	777893.1 Ops/sec

set array index: slice vs Object.assign (version: 0)