Run results for: SUM with forEach vs lodash.map vs map fix

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36

Browser: Chrome 70

Operating system: Mac OS X 10.14.2

Device Platform: Desktop

Date tested: 5 years ago

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

reduce
let posts = [ {id: 1, upVotes: 2}, {id: 2, upVotes: 18}, {id: 3, upVotes: 1}, {id: 4, upVotes: 30}, {id: 5, upVotes: 50} ]; var sum = 0 sum = posts.reduce((s, p)=> s+=p.upVotes,0);
Lodash map
let posts = [ {id: 1, upVotes: 2}, {id: 2, upVotes: 18}, {id: 3, upVotes: 1}, {id: 4, upVotes: 30}, {id: 5, upVotes: 50} ]; var sum = 0 sum = _.map(posts, (element, i) => sum += element.upVotes)
map
let posts = [ {id: 1, upVotes: 2}, {id: 2, upVotes: 18}, {id: 3, upVotes: 1}, {id: 4, upVotes: 30}, {id: 5, upVotes: 50} ]; var sum = 0 sum = posts.map(element => { sum += element.upVotes; });
forEach
let posts = [ {id: 1, upVotes: 2}, {id: 2, upVotes: 18}, {id: 3, upVotes: 1}, {id: 4, upVotes: 30}, {id: 5, upVotes: 50} ]; var sum = 0 sum = posts.forEach(element => { sum += element.upVotes; });