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676 BJavaScriptView Raw
1import addMapEntry from './_addMapEntry.js';
2import arrayReduce from './_arrayReduce.js';
3import mapToArray from './_mapToArray.js';
4
5/** Used to compose bitmasks for cloning. */
6var CLONE_DEEP_FLAG = 1;
7
8/**
9 * Creates a clone of `map`.
10 *
11 * @private
12 * @param {Object} map The map to clone.
13 * @param {Function} cloneFunc The function to clone values.
14 * @param {boolean} [isDeep] Specify a deep clone.
15 * @returns {Object} Returns the cloned map.
16 */
17function cloneMap(map, isDeep, cloneFunc) {
18 var array = isDeep ? cloneFunc(mapToArray(map), CLONE_DEEP_FLAG) : mapToArray(map);
19 return arrayReduce(array, addMapEntry, new map.constructor);
20}
21
22export default cloneMap;