Run results for: Reduce array4

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:131.0) Gecko/20100101 Firefox/131.0

Browser: Firefox 131

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Reduce with empty erray	7922.7 Ops/sec
Reduce with filled array	8643.5 Ops/sec
Reduce with filled array with null	6823.9 Ops/sec
Reduce with new Array	7129.3 Ops/sec
Reduce with var	7840.1 Ops/sec
Reduce with var []	7496.7 Ops/sec
Reduce with var [] assign by index	6397.2 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

var arr = Array(10_000).fill(1)

Tests:

Reduce with empty erray
arr.reduce((acc, x) => { acc.push(x); return acc; }, []);
Reduce with filled array
arr.reduce((acc, x, index) => { acc[index] = x; return acc; }, new Array(arr.length));
Reduce with filled array with null
arr.reduce((acc, x, index) => { acc[index] = x; return acc; }, new Array(arr.length).fill(null));
Reduce with new Array
arr.reduce((acc, x, index) => { acc[index] = x; return acc; }, new Array());
Reduce with var
const a = new Array(arr.length); arr.reduce((acc, x, index) => { acc[index] = x; return acc; }, a);
Reduce with var []
const a = []; arr.reduce((acc, x, index) => { acc.push(x) return acc; }, a);
Reduce with var [] assign by index
const a = []; arr.reduce((acc, x, index) => { acc[index] = x; return acc; }, a);