Run results for: find by id and replace in array [lodash vs js vs ramda]

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

es6 map

42.9M/s

ramda map

9.1M/s

lodash findIndex and splice

5.9M/s

ramda findIndex and splice

2.1M/s

lodash map

800K/s

View exact numbers

Test name	Executions per second
✓ es6 map	42,949,436 Ops/sec
ramda map	9,059,769 Ops/sec
lodash findIndex and splice	5,924,058 Ops/sec
ramda findIndex and splice	2,106,770 Ops/sec
lodash map	800,215 Ops/sec

HTML Preparation code:

<script src="//cdnjs.cloudflare.com/ajax/libs/ramda/0.25.0/ramda.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/lodash-fp/0.10.4/lodash-fp.min.js"></script>

Script Preparation code:

var arr = [{id: 1, name: "Person 1"}, {id: 2, name: "Person 2"}];

Tests:

lodash map
var newArr = _.map(arr, function(a) { return a.id === 1 ? {id: 1, name: "Person New Name"} : a; });
es6 map
// ES6 var newArr = arr.map(function(a) { return a.id === 1 ? {id: 1, name: "Person New Name"} : a; });
lodash findIndex and splice
var index = _.findIndex(arr, {id: 1}); // Replace item at index using native splice arr.splice(index, 1, {id: 100, name: 'Person New Name'});
ramda findIndex and splice
const index = R.findIndex(R.propEq('id', 1))(arr) arr.splice(index, 1, {id: 100, name: 'Person New Name'});
ramda map
var newArr = R.map(function(a) { return a.id === 1 ? {id: 1, name: "Person New Name"} : a; })(arr);