Run results for: lodash omit vs native function

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.6 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 days ago

Test name	Executions per second
lodash omit	4327823.0 Ops/sec
native function	20843612.0 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

function omit(obj, props) {
  const newObj = {};
  for (let prop in obj) {
    if (!props.includes(prop)) {
      newObj[prop] = obj[prop];
    }
  }
  return newObj;
}

Tests:

lodash omit
const myObj = { name: 'John', age: 30, city: 'New York', country: 'USA' }; const newObj = _.omit(myObj, ['city', 'country']);
native function
const myObj = { name: 'John', age: 30, city: 'New York', country: 'USA' }; const newObj = omit(myObj, ['city', 'country']);