Converting array of objects into Object (v2)

Revision 2 of this benchmark created on

Description

https://stackoverflow.com/questions/19874555/how-do-i-convert-array-of-objects-into-one-object-in-javascript

Setup

let arr = [];
for (i = 0; i < 1000; i++) {
  arr[i] = {key: i, value: i+1}
}

Teardown

console.log('resulting object: ', objc)

Test runner

Ready to run.

Testing in
TestOps/sec
using Array.reduce
const objc = arr.reduce((obj, item) => { obj[item.key] = item.value; return obj} ,{});
ready
using Object.fromEntries
const objc = Object.fromEntries(arr.map(item => [item.key, item.value]));
ready
using Array.reduce shortened
const objc = arr.reduce((obj, item) => (obj[item.key] = item.value, obj), {});
ready

Revisions

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