devextreme/cjs/core/utils/array.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (cjs/core/utils/array.js)
 * Version: 22.1.9
 * Build date: Tue Apr 18 2023
 *
 * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */

"use strict";
exports.wrapToArray = exports.removeDuplicates = exports.normalizeIndexes = exports.groupBy = exports.getUniqueValues = exports.getIntersection = void 0;
var _type = require("./type");
var _object = require("./object");
var _config2 = _interopRequireDefault(require("../config"));

function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : {
        default: obj
    }
}

function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread()
}

function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")
}

function _unsupportedIterableToArray(o, minLen) {
    if (!o) {
        return
    }
    if ("string" === typeof o) {
        return _arrayLikeToArray(o, minLen)
    }
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if ("Object" === n && o.constructor) {
        n = o.constructor.name
    }
    if ("Map" === n || "Set" === n) {
        return Array.from(o)
    }
    if ("Arguments" === n || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) {
        return _arrayLikeToArray(o, minLen)
    }
}

function _iterableToArray(iter) {
    if ("undefined" !== typeof Symbol && null != iter[Symbol.iterator] || null != iter["@@iterator"]) {
        return Array.from(iter)
    }
}

function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) {
        return _arrayLikeToArray(arr)
    }
}

function _arrayLikeToArray(arr, len) {
    if (null == len || len > arr.length) {
        len = arr.length
    }
    for (var i = 0, arr2 = new Array(len); i < len; i++) {
        arr2[i] = arr[i]
    }
    return arr2
}

function createOccurrenceMap(array) {
    return array.reduce((function(map, value) {
        var _map$get;
        var count = (null !== (_map$get = map.get(value)) && void 0 !== _map$get ? _map$get : 0) + 1;
        map.set(value, count);
        return map
    }), new Map)
}
var wrapToArray = function(item) {
    return Array.isArray(item) ? item : [item]
};
exports.wrapToArray = wrapToArray;
var getUniqueValues = function(values) {
    return _toConsumableArray(new Set(values))
};
exports.getUniqueValues = getUniqueValues;
var getIntersection = function(firstArray, secondArray) {
    var toRemoveMap = createOccurrenceMap(secondArray);
    return firstArray.filter((function(value) {
        var occurrencesCount = toRemoveMap.get(value);
        occurrencesCount && toRemoveMap.set(value, occurrencesCount - 1);
        return occurrencesCount
    }))
};
exports.getIntersection = getIntersection;
var removeDuplicates = function() {
    var from = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : [];
    var toRemove = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : [];
    var toRemoveMap = createOccurrenceMap(toRemove);
    return from.filter((function(value) {
        var occurrencesCount = toRemoveMap.get(value);
        occurrencesCount && toRemoveMap.set(value, occurrencesCount - 1);
        return !occurrencesCount
    }))
};
exports.removeDuplicates = removeDuplicates;
var normalizeIndexes = function(items, indexPropName, currentItem, needIndexCallback) {
    var indexedItems = {};
    var _config = (0, _config2.default)(),
        useLegacyVisibleIndex = _config.useLegacyVisibleIndex;
    var currentIndex = 0;
    var shouldUpdateIndex = function(item) {
        return !(0, _type.isDefined)(item[indexPropName]) && (!needIndexCallback || needIndexCallback(item))
    };
    items.forEach((function(item) {
        var index = item[indexPropName];
        if (index >= 0) {
            indexedItems[index] = indexedItems[index] || [];
            if (item === currentItem) {
                indexedItems[index].unshift(item)
            } else {
                indexedItems[index].push(item)
            }
        } else {
            item[indexPropName] = void 0
        }
    }));
    if (!useLegacyVisibleIndex) {
        items.forEach((function(item) {
            if (shouldUpdateIndex(item)) {
                while (indexedItems[currentIndex]) {
                    currentIndex++
                }
                indexedItems[currentIndex] = [item];
                currentIndex++
            }
        }))
    }
    currentIndex = 0;
    (0, _object.orderEach)(indexedItems, (function(index, items) {
        items.forEach((function(item) {
            if (index >= 0) {
                item[indexPropName] = currentIndex++
            }
        }))
    }));
    if (useLegacyVisibleIndex) {
        items.forEach((function(item) {
            if (shouldUpdateIndex(item)) {
                item[indexPropName] = currentIndex++
            }
        }))
    }
};
exports.normalizeIndexes = normalizeIndexes;
var groupBy = function(array, getGroupName) {
    return array.reduce((function(groupedResult, item) {
        var _groupedResult$groupN;
        var groupName = getGroupName(item);
        groupedResult[groupName] = null !== (_groupedResult$groupN = groupedResult[groupName]) && void 0 !== _groupedResult$groupN ? _groupedResult$groupN : [];
        groupedResult[groupName].push(item);
        return groupedResult
    }), {})
};
exports.groupBy = groupBy;