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How to use the has function from lodash

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

lodash.has is a function that checks if a given object has a property with a specified key.

astrobench.js

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 * @param {Object} object The object to inspect.
 * @param {string} key The name of the property to check.
 * @returns {boolean} Returns `true` if key is a direct property, else `false`.
 * @example
 *
 * _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
 * // => true
 */
function has(object, key) {
  return object ? hasOwnProperty.call(object, key) : false;

711

gardener.js

GitHub: gardener/dashboard

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  assert.ok(_.get(config, path), `Configuration value '${path}' is required`)
})

_.set(config, 'frontend.apiServerUrl', config.apiServerUrl)
_.set(config, 'frontend.clusterIdentity', config.clusterIdentity)
if (!config.gitHub && _.has(config, 'frontend.ticket')) {
  _.unset(config, 'frontend.ticket')
}

return config

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+ 2 other calls in file

How does lodash.has work?

lodash.has is a function that can be used to check if a given object has a property with a specified key. It takes two arguments: the object to check, and the key to look for. If the object has a property with the specified key, the function returns true. Otherwise, it returns false. Here's the syntax for using lodash.has: javascript Copy code {{{{{{{ _.has(object, path) object (required): The object to check. path (required): The key to look for. If path is a string, lodash.has checks if the object has a property with the specified key. If path is an array, lodash.has checks if the object has a nested property with the specified key path. Here's an example that demonstrates how to use lodash.has to check if an object has a property with a specified key: javascript Copy code {{{{{{{ class="!whitespace-pre hljs language-javascript">const _ = require('lodash'); const person = { name: 'Alice', age: 30 }; console.log(_.has(person, 'name')); // true console.log(_.has(person, 'address')); // false In this example, we define an object person with two properties: name and age. We use lodash.has to check if person has a property with the key "name" and the key "address". The first call to _.has returns true, since person has a property with the key "name". The second call to _.has returns false, since person does not have a property with the key "address".

lodash-contrib.commonjs.js

GitHub: node4good/lodash-contrib

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module.exports.groupBy             = _.groupBy;
module.exports.gt                  = _.gt;
module.exports.gtContrib           = _.gtContrib;
module.exports.gte                 = _.gte;
module.exports.gteContrib          = _.gteContrib;
module.exports.has                 = _.has;
module.exports.hasIn               = _.hasIn;
module.exports.hasPath             = _.hasPath;
module.exports.head                = _.head;
module.exports.humanize            = _.humanize;

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+ 92 other calls in file

fieldsAnt.cjs.js

GitHub: mighty-justice/fields-ant

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}
function renderValue(fieldConfigPartial, model) {
  var fieldConfig = fillInFieldConfig(fieldConfigPartial),
      field = fieldConfig.field,
      render = fieldConfig.render,
      value = lodash.has(fieldConfig, 'value') ? fieldConfig.value : lodash.get(model, field);
  return render(value, fieldConfig, model || {});
}
function renderLabel(fieldConfig) {
  var label = fieldConfig.label,

Ai Example

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const _ = require("lodash");

const person = {
  name: "Alice",
  age: 30,
};

console.log(_.has(person, "name")); // true
console.log(_.has(person, "address")); // false

In this example, we define an object person with two properties: name and age. We use lodash.has to check if person has a property with the key "name" and the key "address". The first call to _.has returns true, since person has a property with the key "name". The second call to _.has returns false, since person does not have a property with the key "address".

04-multiSort.js

GitHub: Thinkful-Ed/node-lodash

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const languages = require('../data/languages')

const sampleCourse = _.first(courses);

function getSortingOption(field){
  return ( _.has(sampleCourse, field) )
    ? field
    : function sortingOptionCallback(course){
        return ( field == 'skill' )
          ? _.find(skills, function(skill){

index.js

GitHub: apostrophecms/apostrophe

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// Return the names of all schema fields present in the `input` object,
// taking into account issues like relationship fields keeping their data in
// a separate ids property, etc.
fieldsPresent(input) {
  return self.schema
    .filter((field) => _.has(input, field.name))
    .map((field) => field.name);
},
// Returns a query that finds docs the current user can edit. Unlike
// find(), this query defaults to including docs in the archive. Subclasses

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model.js

GitHub: maxprogram/grand-central-records

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fn.update = function(data) {
    var schema = this._options.schema;

    _(data).each(function(val, key) {
        if (val && this[key] !== val && _.has(schema, key))
            this[key] = val;
    }, this);

    return this;

+ 15 other calls in file

lodash.js

GitHub: mdmarufsarker/lodash

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console.log(functionsIn); // => ['add', 'after', 'ary', 'assign', ...]


const get = _.get({ 'a': [{ 'b': { 'c': 3 } }] }, 'a[0].b.c');
console.log(get); // => 3


const has = _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
console.log(has); // => true


const hasIn = _.hasIn({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
console.log(hasIn); // => true

+ 15 other calls in file

index.js

GitHub: Eveble/eveble

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    });
    return actions;
}
hasHook(action, id) {
    const actions = this.getActions();
    return lodash.has(actions, `${action}.${id}`);
}
hasAction(action) {
    const actions = this.getActions();
    return lodash.has(actions, action);

+ 34 other calls in file

controller.read.js

GitHub: RedHatInsights/insights-remediations

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const ids = _(systems).map('system_id').uniq().value();

const resolvedSystems = await inventory.getSystemDetailsBatch(ids);

remediation.issues.forEach(issue => issue.systems = issue.systems
.filter(({system_id}) => _.has(resolvedSystems, system_id)) // filter out systems not found in inventory
.map(({system_id, resolved}) => {
    // filtered above
    // eslint-disable-next-line security/detect-object-injection
    const { hostname, display_name } = resolvedSystems[system_id];

+ 4 other calls in file

lookupReplaceAssets.js

GitHub: contentstack/cli

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    }
  }
}


function updateFileFields(objekt, parent, pos, mappedAssetUids, matchedUids, unmatchedUids, mappedAssetUrls) {
  if (_.isPlainObject(objekt) && _.has(objekt, 'filename') && _.has(objekt, 'uid')) {
    if (typeof pos !== 'undefined') {
      if (typeof pos === 'number' || typeof pos === 'string') {
        const replacer = () => {
          if (mappedAssetUids.hasOwnProperty(objekt.uid)) {

+ 19 other calls in file

emby-item.js

GitHub: XBigTK13X/snowby

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    }
    if (this.Type === 'Episode') {
        if (_.has(this.UserData, 'PlaybackPositionTicks') && this.UserData.PlaybackPositionTicks > 0) {
            return true
        }
        return _.has(this.UserData, 'Played') && this.UserData.Played
    }
    return true
}

+ 3 other calls in file

legacy-app.old.js

GitHub: lando/core-next

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/*
 * Helper to load in all app plugins
 */
const loadPlugins = (app, lando) => Promise.resolve(app.plugins.registry)
  // Filter out
  .filter(plugin => _.has(plugin, 'app'))
  // LOADEM!
  .map(plugin => app.plugins.load(plugin, plugin.app, app, lando))
  // Remove any naughty shit
  .map(plugin => _.pick(plugin.data, ['config', 'composeData', 'env', 'labels']))

app.orig.js

GitHub: lando/core-next

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 });

// Add some logic that extends start until healthchecked containers report as healthy
 app.events.on('post-start', 1, () => lando.engine.list({project: app.project})
   // Filter out containers without a healthcheck
   .filter(container => _.has(_.find(app.info, {service: container.service}), 'healthcheck'))
   // Map to info
   .map(container => _.find(app.info, {service: container.service}))
   // Map to a retry of the healthcheck command
   .map(info => lando.Promise.retry(() => {

EventServiceController.js

GitHub: norjs/event-service

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 * @param fetchId {string}
 * @returns {EventServiceSessionObject}
 * @private
 */
_getSession (fetchId) {
	return _.has(this._sessions, fetchId) ? this._sessions[fetchId] : undefined;
}

/**
 *

+ 15 other calls in file

validate.js

GitHub: th3rdwave/serverless-rspack

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}
this.rspackOutputPath = this.rspackConfig.output.path;

// In case of individual packaging we have to create a separate config for each function
if (
  _.has(this.serverless, 'service.package') &&
  this.serverless.service.package.individually
) {
  log.verbose(
    `Individually packaging with concurrency at ${this.configuration.concurrency} entries a time.`,

user.js

GitHub: nodejs-tutorials/hello-ghost

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// For the user model ONLY it is possible to disable validations.
// This is used to bypass validation during the credential check, and must never be done with user-provided data
// Should be removed when #3691 is done
validate: function validate() {
    var opts = arguments[1];
    if (opts && _.has(opts, 'validate') && opts.validate === false) {
        return;
    }
    return validation.validateSchema(this.tableName, this.toJSON());
},

plural.js

GitHub: Air128731/server_json_master

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// in the database
Object.keys(req.query).forEach((query) => {
  const arr = db.get(name).value()
  for (const i in arr) {
    if (
      _.has(arr[i], query) ||
      query === 'callback' ||
      query === '_' ||
      /_lte$/.test(query) ||
      /_gte$/.test(query) ||

+ 9 other calls in file

table.js

GitHub: krieit/Node-vogels

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};


internals.updateTableCapacity = function (table, throughput, callback) {
  var params = {};


  if (_.has(throughput, 'readCapacity') || _.has(throughput, 'writeCapacity')) {
    params.ProvisionedThroughput = {};


    if (_.has(throughput, 'readCapacity')) {
      params.ProvisionedThroughput.ReadCapacityUnits = throughput.readCapacity;

build-query.js

GitHub: carboni09/strapi4.0.7-custom

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const _ = require('lodash');
const parseType = require('./parse-type');


const isAttribute = (model, field) =>
  _.has(model.allAttributes, field) || model.primaryKey === field || field === 'id';


/**
 * Returns the model, attribute name and association from a path of relation
 * @param {Object} options - Options

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