Is there a more efficient method for converting an array of objects?

Question

Is there a more efficient method for converting an array of objects?

Is there a more efficient way to change just one value in an array without iterating through every element?

I've included the code below where I am trying to update the contact number for each user in an array. Although my current solution works, it seems repetitive to modify only one value by looping through all elements. Is there a cleaner approach to replace just the contact number without processing other values?

const users = [
  {
    id: "1",
    name: {
      givenNames: 'SpongeBob',
      last: 'SquarePants',
    },
    contact: {
      email: '',
      phone: '+1 123-1231234'
    },
  },
  {
    id: "2",
    name: {
      givenNames: 'Patrick',
      last: 'Star',
    },
    contact: {
      email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a7d3c2d4d395e7d3c2d4d389c4c8ca">[email protected]</a>',
      phone: '+1 123-123-1234',
    },
  },
  {
    id: "3",
    name: {
      givenNames: 'Eugene Harold',
      last: 'Krabs',
    },
    contact: {
      email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="5b2f3e282f681b2f3e282f75383436">[email protected]</a>',
      phone: '',
    },
  },
];

My implementation:

guestList() {
  const formattedArray = this.getSelectedGuests.map(user => {
     var rObj = {};
     rObj.id = user.id;
     rObj.name = user.name;
     rObj.contact = {
        email: user.contact.email,
        phone: user.contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}]/g, ''),
     };
   return rObj;
  });
  return formattedArray;
}

Updated Output:

const users = [
  {
    id: "1",
    name: {
      givenNames: 'SpongeBob',
      last: 'SquarePants',
    },
    contact: {
      email: '',
      phone: '11231231234'
    },
  },
  {
    id: "2",
    name: {
      givenNames: 'Patrick',
      last: 'Star',
    },
    contact: {
      email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="63170610175123170610174d000c0c">[email protected]</a>',
      phone: '11231231234',
    },
  },
  {
    id: "3",
    name: {
      givenNames: 'Eugene Harold',
      last: 'Krabs',
    },
    contact: {
      email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="56223325226516223325227835393b">[email protected]</a>',
      phone: '',
    },
  },
];

javascript arrays vue.js

Answer 1

Answer №1

If you just need to modify a property within the "contact" object, you can easily achieve this using object destructuring in JavaScript. By extracting "contact" from the rest of the object and then spreading the rest into a new object, you can create a new "contact" property with the modified content while retaining the original structure.

Here's an example snippet demonstrating this concept:

function updateContactInfo(users) {
  return users.map(({ contact, ...rest }) => ({
    ...rest,
    contacts: {
      ...contact,
      phone: contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}]/g, ''),
    }
  }));
}

const usersData = [{"id":"1","name":{"givenNames":"SpongeBob","last":"SquarePants"},"contact":{"email":"","phone":"+1 123-1231234"}},{"id":"2","name":{"givenNames":"Patrick","last":"Star"},"contact":{"email":"example@example.com","phone":"+1 123-123-1234"}}];

const updatedUsers = updateContactInfo(usersData);

console.log(updatedUsers);

To handle multiple immutable transformations efficiently, tools like Immer can be helpful. Immer simplifies mutating code while ensuring immutability through the use of Proxies.

Check out how Immer can be incorporated into your workflow:

const { produce } = immer;

function updateContactInfo(users) {
  return users.map(user => produce(user, draft => {
    draft.contact.phone = user.contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}]/g, '')
  }));
}

const usersData = [{"id":"1","name":{"givenNames":"SpongeBob","last":"SquarePants"},"contact":{"email":"","phone":"+1 123-1231234"}},{"id":"2","name":{"givenNames":"Patrick","last":"Star"},"contact":{"email":"example@example.com","phone":"+1 123-123-1234"}}];

const updatedUsers = updateContactInfo(usersData);

console.log(updatedUsers);

console.log(updatedUsers[0] === usersData[0]); // Output: false (Objects are different)

Answer 2

If you just need to modify a property within the "contact" object, you can easily achieve this using object destructuring in JavaScript. By extracting "contact" from the rest of the object and then spreading the rest into a new object, you can create a new "contact" property with the modified content while retaining the original structure.

Here's an example snippet demonstrating this concept:

function updateContactInfo(users) {
  return users.map(({ contact, ...rest }) => ({
    ...rest,
    contacts: {
      ...contact,
      phone: contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}]/g, ''),
    }
  }));
}

const usersData = [{"id":"1","name":{"givenNames":"SpongeBob","last":"SquarePants"},"contact":{"email":"","phone":"+1 123-1231234"}},{"id":"2","name":{"givenNames":"Patrick","last":"Star"},"contact":{"email":"example@example.com","phone":"+1 123-123-1234"}}];

const updatedUsers = updateContactInfo(usersData);

console.log(updatedUsers);

To handle multiple immutable transformations efficiently, tools like Immer can be helpful. Immer simplifies mutating code while ensuring immutability through the use of Proxies.

Check out how Immer can be incorporated into your workflow:

const { produce } = immer;

function updateContactInfo(users) {
  return users.map(user => produce(user, draft => {
    draft.contact.phone = user.contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}]/g, '')
  }));
}

const usersData = [{"id":"1","name":{"givenNames":"SpongeBob","last":"SquarePants"},"contact":{"email":"","phone":"+1 123-1231234"}},{"id":"2","name":{"givenNames":"Patrick","last":"Star"},"contact":{"email":"example@example.com","phone":"+1 123-123-1234"}}];

const updatedUsers = updateContactInfo(usersData);

console.log(updatedUsers);

console.log(updatedUsers[0] === usersData[0]); // Output: false (Objects are different)

Answer 3

Answer №2

Whenever you opt not to utilize a library that exposes Immutable objects implementation, this is the type of code you'll need to write. Depending on the JavaScript version available to you, you may be able to write slightly shorter code, but the essence remains:

guestList() {
  return this.getSelectedGuests.map(user => ({
    user.id,
    user.name,
    contact: {
        user.contact.email,
        phone: user.contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}]/g, ''),
    }
  }));
}

If immutability is a priority for you, I highly recommend exploring options like Immutable.js (one of the most widely used) or Seamless Immutable (not as popular, but still praised).

Answer 4

Whenever you opt not to utilize a library that exposes Immutable objects implementation, this is the type of code you'll need to write. Depending on the JavaScript version available to you, you may be able to write slightly shorter code, but the essence remains:

guestList() {
  return this.getSelectedGuests.map(user => ({
    user.id,
    user.name,
    contact: {
        user.contact.email,
        phone: user.contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}]/g, ''),
    }
  }));
}

If immutability is a priority for you, I highly recommend exploring options like Immutable.js (one of the most widely used) or Seamless Immutable (not as popular, but still praised).

Answer 5

Answer №3

It is necessary to visit each user in order to update the contact property for every user.

I find it repetitive to iterate over every value just to change the contact object number for each user.

To avoid explicitly copying object properties, you can utilize spread syntax.

In addition, I included hyphen - and whitespace character \s in the regex pattern to achieve the desired output.

const users = [{ id: "1", name: { givenNames: 'SpongeBob', last: 'SquarePants', }, contact: { email: '', phone: '+1 123-1231234' }, }, { id: "2", name: { givenNames: 'Patrick', last: 'Star', }, contact: { email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="fa8e9f898ec8ba8e9f898ed4999597">[email protected]</a>', phone: '+1 123-123-1234', }, }, { id: "3", name: { givenNames: 'Eugene Harold', last: 'Krabs', }, contact: { email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0f7b6a7c7b3c4f7b6a7c7b216c6062">[email protected]</a>', phone: '', }, } ];

let result = users.map(user => ({
  ...user,
  contact: {
    ...user.contact,
    "phone": user.contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}-\s]/g, '')
  }
}));

console.log(result);

In most scenarios, creating new arrays is not a concern as JavaScript and its platforms are optimized for such operations.

If you prefer to modify the array directly, you can use forEach() method for that purpose.

const users = [{ id: "1", name: { givenNames: 'SpongeBob', last: 'SquarePants', }, contact: { email: '', phone: '+1 123-1231234' }, }, { id: "2", name: { givenNames: 'Patrick', last: 'Star', }, contact: { email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="86f2e3f5f2b4c6f2e3f5f2a8e5e9eb">[email protected]</a>', phone: '+1 123-123-1234', }, }, { id: "3", name: { givenNames: 'Eugene Harold', last: 'Krabs', }, contact: { email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="01756472753241756472752f626e6c">[email protected]</a>', phone: '', }, } ];

users.forEach(user => {
  user.contact.phone = user.contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}-\s]/g, '');
});

console.log(users);

Answer 6

It is necessary to visit each user in order to update the contact property for every user.

I find it repetitive to iterate over every value just to change the contact object number for each user.

To avoid explicitly copying object properties, you can utilize spread syntax.

In addition, I included hyphen - and whitespace character \s in the regex pattern to achieve the desired output.

const users = [{ id: "1", name: { givenNames: 'SpongeBob', last: 'SquarePants', }, contact: { email: '', phone: '+1 123-1231234' }, }, { id: "2", name: { givenNames: 'Patrick', last: 'Star', }, contact: { email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="fa8e9f898ec8ba8e9f898ed4999597">[email protected]</a>', phone: '+1 123-123-1234', }, }, { id: "3", name: { givenNames: 'Eugene Harold', last: 'Krabs', }, contact: { email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0f7b6a7c7b3c4f7b6a7c7b216c6062">[email protected]</a>', phone: '', }, } ];

let result = users.map(user => ({
  ...user,
  contact: {
    ...user.contact,
    "phone": user.contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}-\s]/g, '')
  }
}));

console.log(result);

In most scenarios, creating new arrays is not a concern as JavaScript and its platforms are optimized for such operations.

If you prefer to modify the array directly, you can use forEach() method for that purpose.

const users = [{ id: "1", name: { givenNames: 'SpongeBob', last: 'SquarePants', }, contact: { email: '', phone: '+1 123-1231234' }, }, { id: "2", name: { givenNames: 'Patrick', last: 'Star', }, contact: { email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="86f2e3f5f2b4c6f2e3f5f2a8e5e9eb">[email protected]</a>', phone: '+1 123-123-1234', }, }, { id: "3", name: { givenNames: 'Eugene Harold', last: 'Krabs', }, contact: { email: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="01756472753241756472752f626e6c">[email protected]</a>', phone: '', }, } ];

users.forEach(user => {
  user.contact.phone = user.contact.phone.replace(/[&\/\\#,+()$~%.'":*?<>{}-\s]/g, '');
});

console.log(users);

Is there a more efficient method for converting an array of objects?

Answer №1

Answer №2

Answer №3

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