beeblebrox3 / star

import App from "app";

App.helpers.array = {};

/**

 * Sort an array of objects by one prop of objects

 * @param {Array} data

 * @param {String} prop

 * @param {String} direction defines if sort should be asc or desc

 */

App.helpers.array.sortByObjectKey = (data, prop, direction = "asc") => {

    if (["asc", "desc"].indexOf(direction) === -1) {

        throw new Error("Direction should be asc or desc");

    }

    return data.sort((a, b) => {

        let response = 0,

            ap = a[prop],

            bp = b[prop];

        if (ap < bp) {

            response = direction === "asc" ? -1 : 1;

        } else if (ap > bp) {

            response = direction === "asc" ? 1 : -1;

        }

        return response;

    });

};

/**

 * Filter objects from array that has key value in values

 * Example:

 * var a = [{a: 1}, {a: 2}, {a: 3}]

 * App.helpers.array.filterBy("a", [1, 3], a);

 *

 * The output will be:

 * [{a: 1}, {a: 3}]

 * @param key

 * @param values

 * @param items

 */

App.helpers.array.filterBy = (key, values, items) => {

    "use strict";

    return items.filter(item => values.indexOf(item[key]) > -1);

};