Run results for: Lodash vs Just

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.5.1

Device Platform: Mobile

Date tested: 2 months ago

Test name	Executions per second
Lodash get	2372113.5 Ops/sec
Just get	1202943.6 Ops/sec
Lodash set	1186904.5 Ops/sec
Just set	765279.0 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var person = {name: 'Frederick', lastName: 'Corcino Alejo', nested: {name: 'test'}};

function justGet(obj, propsArg, defaultValue) {
  if (!obj) {
    return defaultValue;
  }
  var props, prop;
  if (Array.isArray(propsArg)) {
    props = propsArg.slice(0);
  }
  if (typeof propsArg == 'string') {
    props = propsArg.split('.');
  }
  if (typeof propsArg == 'symbol') {
    props = [propsArg];
  }
  if (!Array.isArray(props)) {
    throw new Error('props arg must be an array, a string or a symbol');
  }
  while (props.length) {
    prop = props.shift();
    if (!obj) {
      return defaultValue;
    }
    obj = obj[prop];
    if (obj === undefined) {
      return defaultValue;
    }
  }
  return obj;
}

function justSet(obj, propsArg, value) {
  var props, lastProp;
  if (Array.isArray(propsArg)) {
    props = propsArg.slice(0);
  }
  if (typeof propsArg == 'string') {
    props = propsArg.split('.');
  }
  if (typeof propsArg == 'symbol') {
    props = [propsArg];
  }
  if (!Array.isArray(props)) {
    throw new Error('props arg must be an array, a string or a symbol');
  }
  lastProp = props.pop();
  if (!lastProp) {
    return false;
  }
  prototypeCheck(lastProp);
  var thisProp;
  while ((thisProp = props.shift())) {
    prototypeCheck(thisProp);
    if (typeof obj[thisProp] == 'undefined') {
      obj[thisProp] = {};
    }
    obj = obj[thisProp];
    if (!obj || typeof obj != 'object') {
      return false;
    }
  }
  obj[lastProp] = value;
  return true;
}

function prototypeCheck(prop) {
  // coercion is intentional to catch prop values like `['__proto__']`
  if (prop == '__proto__' || prop == 'constructor' || prop == 'prototype') {
    throw new Error('setting of prototype values not supported');
  }
}

Tests:

Lodash get
_.get(person, 'name', ''); _.get(person, 'nested.name', '');
Just get
justGet(person, 'name', ''); justGet(person, 'nested.name', '');
Lodash set
_.set(person, 'nested.name.test', 'test'); _.set(person, 'name', 'test'); _.set(person, 'nested.name', 'test');
Just set
justSet(person, 'nested.name.test', 'test'); justSet(person, 'name', 'test'); justSet(person, 'nested.name', 'test');

Run results for: Lodash vs Just

Lodash get

Just get

Lodash set

Just set