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Run results for:
lodash mapValues
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0
Browser:
Firefox 136
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Lodash
12490886.0 Ops/sec
Native reduce
13881254.0 Ops/sec
native for
15034309.0 Ops/sec
native forEach
14098987.0 Ops/sec
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
users = { 'fred': { 'user': 'fred', 'age': 40 }, 'pebbles': { 'user': 'pebbles', 'age': 1 } };
Tests:
Lodash
_.mapValues(users, ({ age }) => age);
Native reduce
const keys = _.keys(users); keys.reduce((acc, key) => { acc[key] = users[key].age; return acc; }, {});
native for
const keys = _.keys(users); const len = keys.length; const result = {}; for (let index = 0; index < len; index++) { result[keys[index]] = users[keys[index]].age; }
native forEach
const keys = _.keys(users); const result = {}; keys.forEach(key => { result[key] = users[key].age; });