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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
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+'use strict';
+
+/**
+ * Module dependenices
+ */
+
+var isObject = require('is-plain-object');
+var clone = require('shallow-clone');
+var typeOf = require('kind-of');
+var forOwn = require('for-own');
+
+/**
+ * Recursively clone native types.
+ */
+
+function cloneDeep(val, instanceClone) {
+ switch (typeOf(val)) {
+ case 'object':
+ return cloneObjectDeep(val, instanceClone);
+ case 'array':
+ return cloneArrayDeep(val, instanceClone);
+ default: {
+ return clone(val);
+ }
+ }
+}
+
+function cloneObjectDeep(obj, instanceClone) {
+ if (isObject(obj) || (instanceClone === true && typeOf(obj) === 'object')) {
+ var res = {};
+ forOwn(obj, function(val, key) {
+ this[key] = cloneDeep(val, instanceClone);
+ }, res);
+ return res;
+ }
+ if (typeof instanceClone === 'function') {
+ return instanceClone(obj);
+ }
+ return obj;
+}
+
+function cloneArrayDeep(arr, instanceClone) {
+ var res = [];
+ for (var i = 0; i < arr.length; i++) {
+ res[i] = cloneDeep(arr[i], instanceClone);
+ }
+ return res;
+}
+
+/**
+ * Expose `cloneDeep`
+ */
+
+module.exports = cloneDeep;