Run results for: bonkers

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

Browser: Chrome 106

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
lodash reduce current	3626.1 Ops/sec
lodash reduce direct	44853.4 Ops/sec
lodash forEach object assign	435.8 Ops/sec
lodash forEach direct	43572.4 Ops/sec
native forEach object assign	438.5 Ops/sec
native forEach direct	61172.7 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.12/lodash.min.js"></script>

Script Preparation code:

var max1 = 1000;
var arr1 = [];
for (var i = 0; i <= max1; i++) { arr1.push({ objectID: i.toString(), a: 'b', c: 'd', e: 'f', g: 'h' }); }

Tests:

lodash reduce current
_.reduce(arr1, (memo, item) => ({ ...memo, [item.objectID]: item }), {});
lodash reduce direct
_.reduce(arr1, (memo, item) => { memo[item.objectID] = item; return memo }, {});
lodash forEach object assign
const hits = {}; _.forEach(arr1, item => Object.assign(hits, { [item.objectID]: item }));
lodash forEach direct
const hits = {}; _.forEach(arr1, item => hits[item.objectID] = item);
native forEach object assign
const hits = {}; arr1.forEach(item => Object.assign(hits, { [item.objectID]: item }));
native forEach direct
const hits = {}; arr1.forEach(item => hits[item.objectID] = item);