Benchmark: Create Square 2D Array Extended

Create Square 2D Array Extended (version: 0)

Script Preparation code:

var size = 15;

Tests:

While Loop with declaration
const array = []; array.length = size; let index = array.length; while (index-- > 0) { const temp = []; temp.length = size; array[index] = temp; }
While Loop with Slice
const array = []; array.length = size; let index = array.length; const temp = []; temp.length = size; while (index-- > 0) array[index] = temp.slice(0);
While Loop with Push and Slice
const array = []; array.length = size; let index = array.length; const temp = []; temp.length = size; while (index-- > 0) array.push(temp.slice(0));
While Loop with Push
const array = []; array.length = size; let index = size; while (index-- > 0) { const temp = []; temp.length = size; array.push(temp); }
Array.from with map
const array = Array.from(Array(size), () => { const temp = []; temp.length = size; return temp; });
Array.from with map and slice
const temp = []; temp.length = size; const array = Array.from(temp, () => temp.slice());
While Loop with Slice and Internal Declaration
const array = []; array.length = size; let index = array.length; while (index-- > 0) { const temp = []; temp.length = size; array[index] = temp; }

Rendered benchmark preparation results:

Previous results

Test case name	Result
While Loop with declaration
While Loop with Slice
While Loop with Push and Slice
While Loop with Push
Array.from with map
Array.from with map and slice
While Loop with Slice and Internal Declaration

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser/OS: Chrome 87 on Windows

Test name	Executions per second
While Loop with declaration	291005.3 Ops/sec
While Loop with Slice	1496097.0 Ops/sec
While Loop with Push and Slice	1413510.0 Ops/sec
While Loop with Push	287501.0 Ops/sec
Array.from with map	227292.5 Ops/sec
Array.from with map and slice	665677.4 Ops/sec
While Loop with Slice and Internal Declaration	298060.1 Ops/sec