Run results for: Lodash vs Ramda vs Native 28/01/2022

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36

Browser: Chrome 97

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Lodash	2055.8 Ops/sec
Ramda without relying on currying or composition	1471.2 Ops/sec
Ramda with currying and composition	1414.8 Ops/sec
Native	1698.6 Ops/sec
transducer	2033.1 Ops/sec
transducer2	2030.7 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.28.0/ramda.min.js" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js" crossorigin="anonymous"></script>

Script Preparation code:

  var data = _.range(10000).map(function(i) {
    return {
      counter: i
    }
  });
  
  function isOdd(num) {
    return num % 2 === 1;
  }
  
  function square(num) {
    return num * num;
  }
  
  function lessThanThreeDigits(num) {
    return num.toString().length < 3;
  }

Tests:

Lodash
var result = _.chain(data) .map(item => item.counter) .filter(isOdd) .map(square) .filter(lessThanThreeDigits) .value();
Ramda without relying on currying or composition
var result = R.filter( lessThanThreeDigits, R.map( square, R.filter( isOdd, R.pluck('counter', data), ), ), );
Ramda with currying and composition
var result = R.pipe( R.pluck('counter'), R.filter(isOdd), R.map(square), R.filter(lessThanThreeDigits) )(data);
Native
var result = data .map(x => x.counter) .filter(isOdd) .map(square) .filter(lessThanThreeDigits) ;
transducer
const transducer = R.compose(R.map((x) => x.counter), R.filter(isOdd), R.map(square), R.filter(lessThanThreeDigits)); const results = R.into([], transducer, data);
transducer2
const transducer = R.compose(R.map((x) => x.counter), R.filter(isOdd), R.map(square), R.filter(lessThanThreeDigits)); const results = R.transduce(transducer, (xs, x) => (xs.push(x), xs), [], data);

Run results for: Lodash vs Ramda vs Native 28/01/2022

Tests libraries lodash, ramda and native array functions on a sequence of map, filter, map filter operations.

Lodash

Ramda without relying on currying or composition

Ramda with currying and composition

Native

transducer

transducer2