freeCodeCamp Challenge Guide: Perform Classic Updates by Running Find, Edit, then Save

Perform Classic Updates by Running Find, Edit, then Save


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Hints

Hint 1

Try to use .findById() method to find person by id .

Hint 2

Use Array.push() method inside callback function to add given string to favoriteFoods array .

Hint 3

Don’t forget the save updated person with a callback function


Solutions

Solution 1 (Click to Show/Hide)
const findEditThenSave = (personId, done) => {
  const foodToAdd = 'hamburger';

  // .findById() method to find a person by _id with the parameter personId as search key. 
  Person.findById(personId, (err, person) => {
    if(err) return console.log(err); 
  
    // Array.push() method to add "hamburger" to the list of the person's favoriteFoods
    person.favoriteFoods.push(foodToAdd);

    // and inside the find callback - save() the updated Person.
    person.save((err, updatedPerson) => {
      if(err) return console.log(err);
      done(null, updatedPerson)
    })
  })
};

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