Benchmark: Object.assign vs spread operator vs property accessor 2

Script Preparation code:

var arr = [...Array(10).keys()];
var alphabet = [...'abcdefghijklmnopqrstuvwxyz'];

Tests:

Object.assign
arr.reduce((acc, cur) => Object.assign(acc, { [alphabet[cur]]: cur }), {});
spread operator
arr.reduce((acc, cur) => ({ ...acc, [alphabet[cur]]: cur }), {});
property accessor
arr.reduce((acc, cur) => { acc[alphabet[cur]] = cur; return acc; }, {});
property accessor 2
arr.reduce((acc, cur) => { return (acc[alphabet[cur]] = cur); }, {});

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: one month ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:124.0) Gecko/20100101 Firefox/124.0

Browser/OS: Firefox 124 on Mac OS X 10.15

Object.assign vs spread operator vs property accessor 2 (version: 0)