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How to use the reject function from lodash

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

lodash.reject creates a new array with all the elements that fail a given predicate function.

astrobench.js

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*   { 'name': 'barney', 'age': 36, 'blocked': false },
*   { 'name': 'fred',   'age': 40, 'blocked': true }
* ];
*
* // using "_.pluck" callback shorthand
* _.reject(characters, 'blocked');
* // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
*
* // using "_.where" callback shorthand
* _.reject(characters, { 'age': 36 });

711

+ 5 other calls in file

lodash-contrib.commonjs.js

GitHub: node4good/lodash-contrib

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module.exports.rcurry3             = _.rcurry3;
module.exports.rearg               = _.rearg;
module.exports.reduce              = _.reduce;
module.exports.reduceRight         = _.reduceRight;
module.exports.reductions          = _.reductions;
module.exports.reject              = _.reject;
module.exports.remove              = _.remove;
module.exports.renameKeys          = _.renameKeys;
module.exports.repeat              = _.repeat;
module.exports.repeatContrib       = _.repeatContrib;

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+ 92 other calls in file

How does lodash.reject work?

lodash.reject is a function in the Lodash library that creates a new array with all the elements that do not pass the provided function test.

When lodash.reject is called, it takes two arguments: the first argument is the array to iterate over, and the second argument is the function invoked per iteration. The function returns a new array that includes all elements in the input array that do not pass the function test.

lib.js

GitHub: fred1218/JS_plugins

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};

var components = {};

var rejectWidgets = ['.DS_Store', 'blank', 'layout2', 'layout3', 'layout4', 'container'];
var allWidgets = _.reject(fs.readdirSync(widgetDir), function(widget) {
  return rejectWidgets.indexOf(widget) > -1;
});

_.forEach(allWidgets, function(widget) {

routes-v2.js

GitHub: Engineering-Research-and-Development/DYMER

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            //  console.log("filertEntitiesFields 3", JSON.stringify(data));
            resolve(data);
            //   return (data)
            // resolve(returnList);
        }).catch(function(err) {
            reject([]);
            console.error("ERROR | " + nameFile + '| filertEntitiesFields | promise.all  : ', err);
            logger.error(nameFile + '| filertEntitiesFields | promise.all 0: ' + err);
        });
} else {

+ 37 other calls in file

Ai Example

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const _ = require("lodash");

const numbers = [1, 2, 3, 4, 5];

const oddNumbers = _.reject(numbers, (n) => n % 2 === 0);

console.log(oddNumbers); // Output: [1, 3, 5]

In this example, we first import the lodash library using the require() function. We then create an array of numbers containing the integers 1 through 5. We use lodash.reject to filter out all even numbers from the array by passing a callback function that returns true for even numbers and false for odd numbers. The resulting array of odd numbers is stored in the oddNumbers variable, and then logged to the console.

routes-v2.js

GitHub: Engineering-Research-and-Development/DYMER

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        resolve(resp);
    }).catch(function(error) {
        // handle error
        console.error("ERROR | " + nameFile + '| bridgeEsternalEntities | PATCH : ', error);
        logger.error(nameFile + '| bridgeEsternalEntities | PATCH : ' + error);
        reject("ERROR:" + objconf.api[callkey].method + " external error=" + error.response.status)
    });
}
if (objconf.api[callkey].method == "PUT") {
    //console.log(nameFile + '| bridgeEsternalEntities | PUT | axios url,datatosend:', url, JSON.stringify(datatosend));

+ 94 other calls in file

lodash.js

GitHub: mdmarufsarker/lodash

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console.log(reduce); // => 3


const reduceRight = _.reduceRight([1, 2], (sum, n) => sum + n, 0);
console.log(reduceRight); // => 3


const reject = _.reject([4, 5, 6], n => n % 2 == 0);
console.log(reject); // => [5]


const sample = _.sample([1, 2, 3, 4]);
console.log(sample); // => 2

+ 15 other calls in file

post.js

GitHub: nodejs-tutorials/hello-ghost

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if (baseUtils.tagUpdate.tagSetsAreEqual(newTags, currentTags)) {
    return;
}

// Tags from the current tag array which don't exist in the new tag array should be removed
tagsToRemove = _.reject(currentTags, function (currentTag) {
    if (newTags.length === 0) {
        return false;
    }
    return _.any(newTags, function (newTag) {

i.js

GitHub: nasolodar/test

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 * @param {object} response
 * @return {array} The requested eager keys.
 */
eagerKeys(response) {
  const key = this.isInverse() && !this.isThrough() ? this.key('foreignKey') : this.parentIdAttribute;
  return _.reject(
    _(response)
      .map(key)
      .uniq()
      .value(),

default-commands.js

GitHub: Waoap/staruml-app-asar

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}


function handleSelectInDiagram() {
  var models = app.selections.getSelectedModels()
  if (models.length > 0) {
    var views = _.reject(app.repository.getViewsOf(models[0]), function (v) {
      return !(v._parent instanceof type.Diagram)
    })
    if (views.length === 1) {
      app.diagrams.selectInDiagram(views[0])

+ 2 other calls in file

build-doc.js

GitHub: Shaom0117/Shaom0117.github.io

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function toFuncList(funcNames) {
  let chunks = _.chunk(funcNames.slice().sort(), 5);
  let lastChunk = _.last(chunks);
  const lastName = lastChunk ? lastChunk.pop() : undefined;


  chunks = _.reject(chunks, _.isEmpty);
  lastChunk = _.last(chunks);


  let result = '`' + _.map(chunks, chunk => chunk.join('`, `') + '`').join(',\n`');
  if (lastName == null) {

+ 4 other calls in file

ui.js

GitHub: maksym1224/ReactWithThree.js

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    })
  }
}


function activate(component, state) {
  let otherComponents = _.reject(state.components, { id: component.id })
  let command = findByName(state.commands, component.command)


  component.active = true
  state.currentInteractiveCommand = command

+ 5 other calls in file

layoutBuilder.js

GitHub: MATC21/ITQ

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if(!isFunction(pageBreakBeforeFct)){
	return false;
}

  linearNodeList = _.reject(linearNodeList, function(node){
    return _.isEmpty(node.positions);
  });

  _.each(linearNodeList, function(node) {

+ 5 other calls in file

scrape.service.js

GitHub: keylimejoe24/stocks-api-docker-compose

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})


let filteredResWeightNan = _.reject(summaryRes, i => isNaN(i.weight) === true);
let sortedAndFilteredRes = filteredResWeightNan.sort((a, b) => parseFloat(b.weight) - parseFloat(a.weight));
let topTenResults = sortedAndFilteredRes.slice(0, 10)
let bottomTenResults = sortedAndFilteredRes.slice(sortedAndFilteredRes.length - 10, sortedAndFilteredRes.length)
return {

index.js

GitHub: websines/reaction-bot

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          message: "Choose a option",
          choices: ["With Watermark", "Without Watermark"],
        },
      ])
      .then((res) => resolve(res))
      .catch((err) => reject(err));
  });


const getInput = (message) =>
  new Promise((resolve, reject) => {

+ 2 other calls in file

cn-flex-form.service.js

GitHub: citizennet/cn-flex-form

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service.processFieldProps(field);

if(key) {
  ((key) => {
    if(_.find(service.errors, { key })) {
      service.errors = _.reject(service.errors, { key });
      service.scope.$broadcast('schemaForm.error.' + key, 'serverValidation', true);
      service.scope.$broadcast('schemaForm.error.' + key, 'schemaForm', true);
    }
  })(getDotKey(key));

+ 8 other calls in file

server.js

GitHub: Big-Brother/bitcore-wallet-service-square

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opts = opts || {};
self.storage.fetchAddresses(self.walletId, function(err, addresses) {
  if (err) return cb(err);

  var onlyMain = _.reject(addresses, {
    isChange: true
  });
  if (opts.reverse) onlyMain.reverse();
  if (opts.limit > 0) onlyMain = _.take(onlyMain, opts.limit);

+ 7 other calls in file

collection-functions.js

GitHub: Amorphous121/lodash-js

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// result = _.reduce(arr, (prev,ele) => prev.concat(ele.toUpperCase()), '');
// log(result);






// _.reject(arr, fun) -> opposite of filter returns the filtered element which doesn't pass the condition


arr = [1,2,3,4,5,6,7,8,9,10];
// should return odd no's 
result = _.reject(arr, ele => ele % 2 == 0);

+ 3 other calls in file

CartScreen.js

GitHub: netappzone/ejinish

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text: Language.t('delete'), onPress: () => {
  this.setState({
    loaded: false
  });
  var cartItems = this.state.cartItems;
  cartItems = _.reject(cartItems, function (product) { return product.variantId == item.variantId; });

  this.setState({
    dataSource: cartItems,
    cartItems: cartItems,

run-all.js

GitHub: Everworks/cypress

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const rejectDirsByPackage = (dirs, rejected) => {
  if (!rejected) return dirs

  if (rejected && rejected.length) {
    return _.reject(dirs, (dir) => {
      return packageNameInArray(dir, rejected)
    })
  }
}

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