Benchmark: emptying an array

Tests:

length zeroing
var arr = [21,241,14,214,12,412,4,12,421,41,24,21]; arr.length = 0
assignment
var arr = [21,241,14,214,12,412,4,12,421,41,24,21]; arr = []
splice
var arr = [21,241,14,214,12,412,4,12,421,41,24,21]; arr.splice(0, arr.length)

Rendered benchmark preparation results:

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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; rv:73.0) Gecko/20100101 Firefox/73.0

Browser/OS: Firefox 73 on Windows

emptying an array (version: 0)