omit.js

function omit(obj, omitList = []) {
  const result = { ...obj };
  omitList.forEach((prop) => {
    delete result[prop];
  });
  return result;
}

const person = {
  name: 'Jonathan',
  age: 21,
  gender: 'male'
}

const ageOmitted = omit(person, ['age']);

console.log(ageOmitted); // Result { name: 'Jonathan', gender: 'male' }