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How to use the clone function from lodash

Find comprehensive JavaScript lodash.clone code examples handpicked from public code repositorys.

lodash.clone creates a shallow clone of a given object or array.

create.js

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  })
})
context('when add-on is async', () => {
  context('provisioning message and config vars provided by add-on provider', () => {
    beforeEach(() => {
      const asyncAddon = _.clone(addon)

      asyncAddon.state = 'provisioning'

      api.post('/apps/myapp/addons', {

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+ 23 other calls in file

utils.js

GitHub: medic/cht-core

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  });
};

return getTranslationsDoc(languageCode).then(translationsDoc => {
  if (builtinTranslations.includes(languageCode)) {
    originalTranslations[languageCode] = _.clone(translationsDoc.generic);
  }

  Object.assign(translationsDoc.generic, translations);
  return db.put(translationsDoc);

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+ 9 other calls in file

How does lodash.clone work?

lodash.clone creates a shallow clone of a given object or array. This means that it creates a new object or array, and copies over the properties or elements from the original object or array. However, if the properties or elements themselves are objects or arrays, they are not cloned - they are only referenced by the new object or array.

For example, if the original object has a property that is an array, the cloned object will reference the same array as the original object. Therefore, if you modify the array in the cloned object, the original object will also be modified.

lodash.clone takes one argument, which can be an object or array. The function returns a new object or array that is a shallow clone of the original.

Note that lodash.clone only performs a shallow clone. If you need to perform a deep clone, where all properties and elements are also cloned recursively, you can use lodash.cloneDeep.

index.js

GitHub: sergeyksv/tinelic

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		mpath = path.resolve(path.dirname(require.main.filename),mpath);
	mod = require(mpath);
}
if (!mod)
	return cb(new Error("Can't not load module " + module.name));
var args = _.clone(module.deps || []);
args = _.union(mod.deps || [],args);
_.each(args, function (m) {
	requested[m]=1;
});

middlewares.js

GitHub: Pythagora-io/pythagora

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    let req = pythagora.testingRequests[reqId];
    req.testIntermediateData.forEach((obj) => { delete obj.processed });


    global.Pythagora.request = {
        id: req.id,
        errors: _.clone(req.errors),
        intermediateData: req.testIntermediateData
    };
}

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Ai Example

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const _ = require("lodash");

const original = {
  name: "John",
  age: 30,
  pets: ["dog", "cat"],
  address: {
    street: "123 Main St",
    city: "Anytown",
    state: "CA",
  },
};

const cloned = _.clone(original);

console.log(cloned); // { name: 'John', age: 30, pets: [ 'dog', 'cat' ], address: { street: '123 Main St', city: 'Anytown', state: 'CA' } }

console.log(cloned === original); // false
console.log(cloned.address === original.address); // true

In this example, we have an object original that has some properties and an inner object. We use lodash.clone to create a new object cloned that is a shallow copy of original. We then log the cloned object to the console and verify that it is indeed a copy of the original. We also use the === operator to check if cloned and original are the same object (they are not, since lodash.clone creates a new object), and check if the address property of both objects refers to the same object (it does, since it was not cloned).

mongodb.js

GitHub: Pythagora-io/pythagora

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let unsupportedMethods = ['aggregate'];


let methods = ['save','find', 'insert', 'update', 'delete', 'deleteOne', 'insertOne', 'updateOne', 'updateMany', 'deleteMany', 'replaceOne', 'replaceOne', 'remove', 'findOneAndUpdate', 'findOneAndReplace', 'findOneAndRemove', 'findOneAndDelete', 'findByIdAndUpdate', 'findByIdAndRemove', 'findByIdAndDelete', 'exists', 'estimatedDocumentCount', 'distinct', 'translateAliases', '$where', 'watch', 'validate', 'startSession', 'diffIndexes', 'syncIndexes', 'populate', 'listIndexes', 'insertMany', 'hydrate', 'findOne', 'findById', 'ensureIndexes', 'createIndexes', 'createCollection', 'create', 'countDocuments', 'count', 'bulkWrite', 'aggregate'];


function mongoObjToJson(originalObj) {
    let obj = _.clone(originalObj);
    if (!obj) return obj;
    else if (isObjectId(obj)) return `ObjectId("${obj.toString()}")`;
    if (Array.isArray(obj)) return obj.map(d => {
        return mongoObjToJson(d)

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+ 5 other calls in file

middlewares.js

GitHub: Pythagora-io/pythagora

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    unpatchJwtVerify(originalFunction);
    logWithStoreId('testing end');
    checkForFinalErrors(reqId, pythagora);
    global.Pythagora.request = {
        id: pythagora.testingRequests[reqId].id,
        errors: _.clone(pythagora.testingRequests[reqId].errors)
    };
    _end.call(this, body);
};

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+ 8 other calls in file

common.js

GitHub: Pythagora-io/pythagora

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}


const getCircularReplacer = () => {
    const seen = new WeakSet();
    return (key, value) => {
        value = _.clone(value);
        if (isLegacyObjectId(value)) value = (new ObjectId(Buffer.from(value.id.data))).toString();
        else if (value instanceof RegExp) value = `RegExp("${value.toString()}")`;
        else if (Array.isArray(value) && value.find(v => isLegacyObjectId(v))) {
            value = value.map(v => isLegacyObjectId(v) ? (new ObjectId(Buffer.from(v.id.data))).toString() : v);

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index.js

GitHub: IMA-WorldHealth/bhima

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 * @description
 * The HTTP interface which actually creates the report.
 */
async function report(req, res, next) {
  try {
    const qs = _.clone(req.query);
    _.extend(qs, { filename : 'REPORT.CLIENT_SUMMARY.TITLE' });


    const groupUuid = db.bid(req.query.group_uuid);
    const showDetails = parseInt(req.query.shouldShowDebtsDetails, 10);

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manager.js

GitHub: pocketnetteam/pocketnet.gui

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if(responses < need){

    Promise.race(_.map(similarnodes, function(n){


        return n.rpcs(method, _.clone(parameters))

    })).then(r => {

+ 23 other calls in file

proxy.js

GitHub: pocketnetteam/pocketnet.gui

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action: function (message) {

	if (!message.A)
		return Promise.reject({ error: 'Unauthorized', code: 401 });

	var dumpdata = _.clone(dump)

	if (dump.stared){
		return Promise.resolve({
			message : "started yet",

+ 15 other calls in file

cli-yo.js

GitHub: TryGhost/slimer

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const Generator = this.findGenerator(name);
let {args, options} = this.initGeneratorHelp(Generator);
const yoDefaults = ['help', 'skip-cache', 'skip-install'];

const toSywac = (t) => {
    let tt = _.clone(t);
    tt.type = t.type.name.toLowerCase();
    tt.flags = `--${t.name}`;
    tt.defaultValue = t.default;
    return tt;

properties.js

GitHub: thinktelligence/entodicton

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// see if anything is preferred greg
// what does greg like
const matches = propertiesAPI.relation_get(context, ['ordering', ordering.object])
if (matches.length == 0) {
  // Object.assign(context, { marker: 'idontknow', query: _.clone(context) })
  context.response = { marker: 'idontknow', query: _.clone(context), isResponse: true }
} else {
  context.response = { marker: 'list', value: matches, isResponse: true }
}
context.response.truthValue = matches.length > 0 && matches[0].marker == ordering.marker

+ 11 other calls in file

core.server.config.tests.js

GitHub: coversb/iot-operation

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  originalLogConfig;


describe('Configuration Tests:', function () {


  describe('Testing Mongo Seed', function () {
    var _seedConfig = _.clone(config.seedDB, true);
    var articleSeedConfig;
    var userSeedConfig;
    var _admin;
    var _user;

+ 19 other calls in file

default-commands.js

GitHub: Waoap/staruml-app-asar

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      })
  }
}


function handleDeleteFromModel() {
  var models = _.clone(app.selections.getSelectedModels())
  _.each(app.selections.getSelectedViews(), function (view) {
    if (view.model && !_.includes(models, view.model)) {
      models.push(view.model)
    }

+ 2 other calls in file

mount-models.js

GitHub: Akemona/strapi

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      justOne: value.justOne || false,
    });
  }
);

target[model].allAttributes = _.clone(definition.attributes);

const createAtCol = _.get(definition, 'options.timestamps.0', 'createdAt');
const updatedAtCol = _.get(definition, 'options.timestamps.1', 'updatedAt');

user.test.js

GitHub: Akemona/strapi

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    email: 'kaidoe@email.com',
    roles: [2],
    isActive: true,
    registrationToken: 'another-token',
  };
  const expected = _.clone(input);
  const result = await userService.create(input);

  expect(result).toMatchObject(expected);
});

ldap.js

GitHub: johnrichter/datadog-examples

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    email: process.env.KONGA_LDAP_ATTR_EMAIL || 'mail'
};
var commonName = /^cn=([^,]+),.*/;


var ldapToUser = function (ldapUser, user, next) {
    var data = _.clone(user || {});
    
    data.admin =
        _.findIndex(ldapUser._groups, group_test) > -1 ||
        _.findIndex(ldapUser.memberOf, member_test) > -1;

+ 6 other calls in file

index.js

GitHub: apostrophecms/apostrophe

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  // If we have more than one object we're not interested in relationships
  // with the ifOnlyOne restriction right now.
  if (objects.length > 1 && relationship.ifOnlyOne) {
    return;
  }
  relationship._arrays = _.clone(arrays);
});
relationships = relationships.concat(_relationships);
_.each(schema, function (field) {
  if (field.type === 'array' || field.type === 'object') {

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lodash-contrib.commonjs.js

GitHub: node4good/lodash-contrib

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module.exports.chain               = _.chain;
module.exports.chunk               = _.chunk;
module.exports.chunkAll            = _.chunkAll;
module.exports.chunkContrib        = _.chunkContrib;
module.exports.clamp               = _.clamp;
module.exports.clone               = _.clone;
module.exports.cloneDeep           = _.cloneDeep;
module.exports.cloneDeepWith       = _.cloneDeepWith;
module.exports.cloneWith           = _.cloneWith;
module.exports.collate             = _.collate;

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token.js

GitHub: thetartan/tartan

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  return isLiteral(token) && (token.value == ')');
}

function pivotToStripe(token) {
  if (isPivot(token)) {
    token = _.clone(token);
    token.type = tokenType.stripe;
  }
  return token;
}

+ 31 other calls in file

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