Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36
Chrome 74
Windows
Desktop
5 years ago
Test name Executions per second
Lodash 707.1 Ops/sec
Ramda without relying on currying or composition 693.9 Ops/sec
Ramda with currying and composition 673.0 Ops/sec
HTML Preparation code:
AخA
 
1
<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.25.0/ramda.min.js"></script>
2
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"></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);