HTML Preparation code:
AخA
 
1
<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.27.0/ramda.min.js"></script>
2
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js"></script>
Script Preparation code:
x
 
var data = [];
for (var i = 0; i < 10000; i++) {
     data.push({ counter: i });
}
function isOdd(num) {
  return num % 2 === 1;
}
function square(num) {
  return num * num;
}
function lessThanThreeDigits(num) {
  return num.toString().length < 3;
}
var expected = data.map(o => o.counter).filter(isOdd).map(square).filter(lessThanThreeDigits);
Tests:
  • Lodash

     
    var result = _.chain(data)
      .map(d => _.get(d, '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);
  • VanillaJS functional style

     
    var result = data.map(o => o.counter).filter(isOdd).map(square).filter(lessThanThreeDigits);
  • VanillaJS procedural

     
    var result = new Array();
    for (var i = 0; i < data.length; i++) {
      var c = data[i].counter;
      if (isOdd(c)) {
        var r = square(c);
        if (lessThanThreeDigits(r)) {
          result.push(r);
        }
      }
    }
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    Lodash
    Ramda without relying on currying or composition
    Ramda with currying and composition
    VanillaJS functional style
    VanillaJS procedural

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 24 days ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Chrome 132 on Windows
View result in a separate tab
Test name Executions per second
Lodash 1773.3 Ops/sec
Ramda without relying on currying or composition 1002.1 Ops/sec
Ramda with currying and composition 980.2 Ops/sec
VanillaJS functional style 2693.2 Ops/sec
VanillaJS procedural 6727.4 Ops/sec