group-by-object/dist/main.js

Group an array by primitive values or objects

(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define([], factory);
	else {
		var a = factory();
		for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];
	}
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// identity function for calling harmony imports with the correct context
/******/ 	__webpack_require__.i = function(value) { return value; };
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, {
/******/ 				configurable: false,
/******/ 				enumerable: true,
/******/ 				get: getter
/******/ 			});
/******/ 		}
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "";
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(__webpack_require__.s = 2);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var isPlainObj = __webpack_require__(1);

module.exports = function (obj, opts) {
	if (!isPlainObj(obj)) {
		throw new TypeError('Expected a plain object');
	}

	opts = opts || {};

	// DEPRECATED
	if (typeof opts === 'function') {
		throw new TypeError('Specify the compare function as an option instead');
	}

	var deep = opts.deep;
	var seenInput = [];
	var seenOutput = [];

	var sortKeys = function sortKeys(x) {
		var seenIndex = seenInput.indexOf(x);

		if (seenIndex !== -1) {
			return seenOutput[seenIndex];
		}

		var ret = {};
		var keys = Object.keys(x).sort(opts.compare);

		seenInput.push(x);
		seenOutput.push(ret);

		for (var i = 0; i < keys.length; i++) {
			var key = keys[i];
			var val = x[key];

			if (deep && Array.isArray(val)) {
				var retArr = [];

				for (var j = 0; j < val.length; j++) {
					retArr[j] = isPlainObj(val[j]) ? sortKeys(val[j]) : val[j];
				}

				ret[key] = retArr;
				continue;
			}

			ret[key] = deep && isPlainObj(val) ? sortKeys(val) : val;
		}

		return ret;
	};

	return sortKeys(obj);
};

/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var toString = Object.prototype.toString;

module.exports = function (x) {
	var prototype;
	return toString.call(x) === '[object Object]' && (prototype = Object.getPrototypeOf(x), prototype === null || prototype === Object.getPrototypeOf({}));
};

/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {

"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 sortKeys = __webpack_require__(0);

function groupBy(array, keySelector) {
  var elementSelector = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;

  var keys = {};
  var map = new Map();
  array.forEach(function (item, index) {
    var key = keySelector(item, index);
    if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) === 'object') {
      key = sortKeys(key, { deep: true });
    }
    var str = JSON.stringify(key);
    if (typeof keys[str] === 'undefined') {
      keys[str] = key;
      map.set(key, []);
    }
    map.get(keys[str]).push(elementSelector !== null ? elementSelector(item, index) : item);
  });
  return map;
}

groupBy.install = function (returnArray) {
  Array.prototype.groupBy = function () {
    var result = groupBy.apply(undefined, [this].concat(Array.prototype.slice.call(arguments)));
    if (returnArray) {
      result = Array.from(result);
    }
    return result;
  };
};

module.exports = groupBy;

/***/ })
/******/ ]);
});
//# sourceMappingURL=main.js.map