CODEWITHSUNDEEP
javascriptlodash
nkhil
nkhil

Reputation: 1620

Using lodash, how do I set multiple properties on an object?

I have a list of properties, like so:

const list = [
  'creditCardNumber',
  'orderDetails.amount',
  'customerInformation.details.email',
]

Given an object like this:

const someObj = {
  creditCardNumber: '000 0000 0000 0000',
  orderNumber: '1234',
  orderDetails: { amount: 20, date: 'some date' },
  customerInformation: { details: { email: '[email protected]', joinedOn: 'someDate' } },
  someOtherProp: 'some value',
}

Using lodash, or vanilla JS, is there an easy way to make a copy of the obj, while re-writing the values of locations on the list array (to the same value for eg: [HIDDEN]) so we get something like this?

{  
  const someObj = {
  creditCardNumber: '[HIDDEN]',
  orderNumber: '1234',
  orderDetails: { amount:'[HIDDEN]', date: 'some date' },
  customerInformation: { details: { email: '[HIDDEN]', joinedOn: 'someDate' } },
  someOtherProp: 'some value',
}

Upvotes: 0

Views: 2650

Answers (2)

DecPK
DecPK

Reputation: 25401

USING VANILLA JS

Clone object using Object Destructuring and then using forEach add the [HIDDEN] value

const list = [
  "creditCardNumber",
  "orderDetails.amount",
  "customerInformation.details.email",
];

const someObj = {
  creditCardNumber: "000 0000 0000 0000",
  orderNumber: "1234",
  orderDetails: {
    amount: 20,
    date: "some date"
  },
  customerInformation: {
    details: {
      email: "[email protected]",
      joinedOn: "someDate"
    },
  },
  someOtherProp: "some value",
};

let clone = { ...someObj };

list.forEach((prop) => {
  const splitProp = prop.split(".");

  let obj = clone;
  splitProp.forEach((p, i, arr) => {
    if (i === arr.length - 1) {
      obj[p] = `[HIDDEN]`;
    } else {
      obj = obj[p];
    }
  });
});

console.log(clone);

Upvotes: 0

0stone0
0stone0

Reputation: 44264

Lodash _.set() accepts dot seperated object paths, so

_.set(obj, 'orderDetails.amount', 'TEST');

Will resolve to:

obj.orderDetails.amount = 'TEST'

Combine that with a loop for each list item to get the desired result:

const list = [ 'creditCardNumber', 'orderDetails.amount', 'customerInformation.details.email' ];
const someObj = {creditCardNumber: '000 0000 0000 0000', orderNumber: '1234', orderDetails: { amount: 20, date: 'some date' }, customerInformation: { details: { email: '[email protected]', joinedOn: 'someDate' } }, someOtherProp: 'some value', }

const newObj = _.clone(someObj);
list.forEach(key => _.set(newObj, key, '[HIDDEN]'));
console.log(newObj);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js"></script>

{
    "creditCardNumber": "[HIDDEN]",
    "orderNumber": "1234",
    "orderDetails":
    {
        "amount": "[HIDDEN]",
        "date": "some date"
    },
    "customerInformation":
    {
        "details":
        {
            "email": "[HIDDEN]",
            "joinedOn": "someDate"
        }
    },
    "someOtherProp": "some value"
}

Note: Using _.clone() to 'clone' the object ;)

Upvotes: 1

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