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- 'use strict';
-
- var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
-
- var nestedValue = require('../helpers/nestedValue');
-
- var buildKeyPathMap = function buildKeyPathMap(items) {
- var keyPaths = {};
-
- items.forEach(function (item, index) {
- function buildKeyPath(val, keyPath) {
- if ((typeof val === 'undefined' ? 'undefined' : _typeof(val)) === 'object') {
- Object.keys(val).forEach(function (prop) {
- buildKeyPath(val[prop], keyPath + '.' + prop);
- });
- }
-
- keyPaths[keyPath] = val;
- }
-
- buildKeyPath(item, index);
- });
-
- return keyPaths;
- };
-
- module.exports = function pluck(value, key) {
- if (value.indexOf('*') !== -1) {
- var keyPathMap = buildKeyPathMap(this.items);
-
- var keyMatches = [];
-
- if (key !== undefined) {
- var keyRegex = new RegExp('0.' + key, 'g');
- var keyNumberOfLevels = ('0.' + key).split('.').length;
-
- Object.keys(keyPathMap).forEach(function (k) {
- var matchingKey = k.match(keyRegex);
-
- if (matchingKey) {
- var match = matchingKey[0];
-
- if (match.split('.').length === keyNumberOfLevels) {
- keyMatches.push(keyPathMap[match]);
- }
- }
- });
- }
-
- var valueMatches = [];
- var valueRegex = new RegExp('0.' + value, 'g');
- var valueNumberOfLevels = ('0.' + value).split('.').length;
-
- Object.keys(keyPathMap).forEach(function (k) {
- var matchingValue = k.match(valueRegex);
-
- if (matchingValue) {
- var match = matchingValue[0];
-
- if (match.split('.').length === valueNumberOfLevels) {
- valueMatches.push(keyPathMap[match]);
- }
- }
- });
-
- if (key !== undefined) {
- var collection = {};
-
- this.items.forEach(function (item, index) {
- collection[keyMatches[index] || ''] = valueMatches;
- });
-
- return new this.constructor(collection);
- }
-
- return new this.constructor([valueMatches]);
- }
-
- if (key !== undefined) {
- var _collection = {};
-
- this.items.forEach(function (item) {
- if (nestedValue(item, value) !== undefined) {
- _collection[item[key] || ''] = nestedValue(item, value);
- } else {
- _collection[item[key] || ''] = null;
- }
- });
-
- return new this.constructor(_collection);
- }
-
- return this.map(function (item) {
- if (nestedValue(item, value) !== undefined) {
- return nestedValue(item, value);
- }
-
- return null;
- });
- };
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