Run results for: Ramda lens path vs precompiled lens path vs vanilla

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36

Browser: Chrome 96

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Precompiled	4512019.0 Ops/sec
Ramda	2548572.0 Ops/sec
Vanilla	4595186.0 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.25.0/ramda.min.js"></script>

Script Preparation code:

function compileFn(source) {
  // eslint-disable-next-line no-eval
  return eval(`(function() {return ${source}})()`);
}

function compiledPathGetter(path) {
  return compileFn(/* typescript */ `function _getter (obj) {
    return obj.${path};
  }`);
}

function ramdaGetter(path) {
  const getter = R.view(R.lensPath(path.split('.')));
  
  return getter;
}

window.theme = { colors: { red: 'red' } };

window.getNestedColor = compiledPathGetter('colors.red');
window.getNestedColorRamda = ramdaGetter('colors.red');
window.getNestedColorVanilla = (obj) => obj.colors.red;

Tests:

Precompiled
getNestedColor(theme);
Ramda
getNestedColorRamda(theme);
Vanilla
getNestedColorVanilla(theme);

Run results for: Ramda lens path vs precompiled lens path vs vanilla

Precompiled

Ramda

Vanilla