Alternative to lodash omit

For a single key you can destructure the object, and use computed property with rest to create an object without the property:

const omitSingle = (key, { [key]: _, ...obj }) => obj
const profile = { name: 'Maria', age: 30 }

const result = omitSingle('name', profile)

console.log(result)

To omit multiple properties, you can convert the object to [key, value] pairs, filter the pairs according to the listed keys array, and then convert back to an object via Object.fromEntries():

const omit = (keys, obj) => 
  Object.fromEntries(
    Object.entries(obj)
      .filter(([k]) => !keys.includes(k))
  )
  
const profile = { name: 'Maria', gender: 'Female', age: 30 }

const result = omit(['name', 'gender'], profile)

console.log(result)

If you don't have a nested object, try to clone as follows:

const profile = { name: 'Maria', age: 30 }

function deleteProperty(object, property){
  var clonedObject = JSON.parse(JSON.stringify(object));
  delete clonedObject[property];
  return clonedObject;
}

var newProfile = deleteProperty(profile, "name");

console.log(profile);
console.log(newProfile);

 const obj = { 
   prop0: 0, 
   prop1: 1, 
   prop2: 2, 
   prop3: 3, 
 };
   
 const prunedObj = (({ prop1, prop2, ...rest }) => rest)(obj);

 // prunedObj => { prop0: 0, prop3: 3}

Tags:

Javascript

Object

Lodash

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