Lodash Art Gallery

convert-date-components.js

// Author: Giles
const datetimeComponents = _(matchResults).tail().map(_.toNumber).value();

// Better than
var datetimeComponents = _.map(
    matchResults.slice(1, 6), // skip the matched result
    function(component) {
        return parseInt(component, 10);
    }
);

deep-merge-greenhouse-data.js

const sanitizeData = (response) => {
    return _.mergeWith(
        ..._(response.offices)
            .filter(office => _.includes(OFFICES, office.name))
            .map(office => _.fromPairs(
                _(office.departments)
                .filter(dep => _.includes(DEPARTMENTS, dep.name))
                .map(dep => [dep.name, dep.jobs]).value(),
            )).value(),
        _.ary(_.concat, 2),
    );
};

export-storage-objects.js

// Author: Giles
_.mixin({
    objectWith: (array, iterator) => _.zipObject(array, _.map(array, iterator)),
});

const storages = ['local', 'session'];
module.exports = _.objectWith(storages, (name) => new Cache(`${name}Storage`));

// Better than
module.exports = {
    local: new Cache('localStorage'),
    session: new Cache('sessionStorage'),
};

format-cc-number.js

// Author: Giles
const cardSegments = _(cardNumber).split('').chunk(4).invokeMap('join', '').value();

// Better than
const cardSegments = [
    cardNumber.substring(0, 4),
    cardNumber.substring(4, 8),
    cardNumber.substring(8, 12),
    cardNumber.substring(12),
];

generate-cc-mask.js

// Author: Giles
const BULLET_MASK = _.times(4, _.constant(_.repeat('\u2022', 4))).join(' ');

// Better than
const BULLET_MASK = '\u2022\u2022\u2022\u2022 \u2022\u2022\u2022\u2022 \u2022\u2022\u2022\u2022 \u2022\u2022\u2022\u2022';

get-picture-url.js

const path = 'picture.sizes[100]';
const getPicture = _.wrap(_.get, (fn, path) => { return fn($scope.author, path) });
$scope.pictureSource = getPicture(`${path}.url`, getPicture(path));

// Better than
if (_.has($scope.author, 'picture.sizes[100]')) {
    const picture = $scope.author.picture.sizes[100];
    // Some synchronizers send an object, others send a string
    $scope.pictureSource = picture.url || picture;
}

set-date-components.js

// Author: Tim
_.zipObjects(
    ['setFullYear', 'setMonth', 'setDate', 'setHours', 'setMinutes'],
    _.map(datetimeComponents, (c, i) => i === 1 ? c - 1 : c)
).forEach((param, method) => modelDate[method](param))

// Better than
modelDate.setFullYear(datetimeComponents[0]);
modelDate.setMonth(datetimeComponents[1] - 1); // Only this is 0-indexed
modelDate.setDate(datetimeComponents[2]);
modelDate.setHours(datetimeComponents[3]);
modelDate.setMinutes(datetimeComponents[4]);