@onesy/utils/unique.js

Utils

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const is_1 = __importDefault(require("./is"));
const getObjectValue_1 = __importDefault(require("./getObjectValue"));
/**
 * It returns an array with unique simple values
 * and / or array and object values.
 *
 * Referenced values are only compared based on
 * values in those reference type values based on array
 * of keys provided in the second argument in the method.
 *
 * Uniqueness of array and object values is separatelly
 * evaluated based on keys value and returned in the result.
 */
const unique = (object, ...args) => {
    const cache = {
        simple: [],
        array: [],
        object: [],
    };
    const output = [];
    if ((0, is_1.default)('array', object)) {
        object.forEach(item => {
            const isNotArrayObject = (0, is_1.default)('not-array-object', item);
            const isArray = (0, is_1.default)('array', item);
            const value = (isNotArrayObject || !args.length) ? item : (0, getObjectValue_1.default)(item, ...args);
            const cacheArray = cache[isNotArrayObject ? 'simple' : isArray ? 'array' : 'object'];
            const exists = cacheArray.find(cacheItem => value === cacheItem);
            if (!exists && value !== undefined) {
                output.push(item);
                cache[isNotArrayObject ? 'simple' : isArray ? 'array' : 'object'].push(value);
            }
        });
    }
    return output;
};
exports.default = unique;