Benchmark: Slice vs Splice insert element to array

Script Preparation code:

var array = []
for (let i = 0; i < 100000; i++) {array.push(i)}
var indexToRemove = 6700
var indexToInsert = 4200

Tests:

insert by join multi sub-array
array = array.slice(0,indexToInsert).concat('meo', array.slice(indexToInsert, indexToRemove), array.slice(indexToRemove+1, array.length))
insert by using splice
array.splice(indexToRemove, 1) array.splice(indexToInsert, 0, 'meo')

Rendered benchmark preparation results:

Previous results

Test case name	Result
insert by join multi sub-array
insert by using splice

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Latest run results:

Run details: (Test run date: 9 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser/OS: Chrome 114 on Linux

Test name	Executions per second
insert by join multi sub-array	2203.4 Ops/sec
insert by using splice	32799.7 Ops/sec

Slice vs Splice insert element to array (version: 0)