// define dis-allowed keys and values
const disAllowedKeys = ['_id','__v','password'];
const disAllowedValues = [null, undefined, ''];
// our object, maybe a Mongoose model, or some API response
const someObject = {
_id: 132456789,
password: '$1$O3JMY.Tw$AdLnLjQ/5jXF9.MTp3gHv/',
name: 'John Edward',
age: 29,
favoriteFood: null
};
// use reduce to create a new object with everything EXCEPT our dis-allowed keys and values!
const withOnlyGoodValues = Object.entries(someObject).reduce((ourNewObject, pair) => {
const key = pair[0];
const value = pair[1];
if (
disAllowedKeys.includes(key) === false &&
disAllowedValues.includes(value) === false
){
ourNewObject[key] = value;
}
return ourNewObject;
}, {});
// what we get back...
// {
// name: 'John Edward',
// age: 29
// }
// do something with the new object!
server.sendToClient(withOnlyGoodValues);