Use URL when available natively

README.md

@@ -103,6 +103,12 @@ So, `b.myself` points to `b`, not `a`. Neat!
 
 ## Changelog
 
+### v2.1.3
+
+#### 2019-12-16
+
+  - Use native `URL` on Node >= 10.0.0 (contributed by @iambalaam)
+
 ### v2.1.2
 
 #### 2018-03-21

clone.js

@@ -21,6 +21,13 @@ try {
   nativeSet = function() {};
 }
 
+var nativeURL;
+try {
+  nativeURL = URL;
+} catch (_) {
+  nativeURL = function () { };
+}
+
 var nativePromise;
 try {
   nativePromise = Promise;
@@ -88,6 +95,8 @@ function clone(parent, circular, depth, prototype, includeNonEnumerable) {
       child = new nativeMap();
     } else if (_instanceof(parent, nativeSet)) {
       child = new nativeSet();
+    } else if (_instanceof(parent, nativeURL)) {
+      child = new nativeURL(parent);
     } else if (_instanceof(parent, nativePromise)) {
       child = new nativePromise(function (resolve, reject) {
         parent.then(function(value) {
@@ -187,7 +196,7 @@ function clone(parent, circular, depth, prototype, includeNonEnumerable) {
           continue;
         }
         child[symbol] = _clone(parent[symbol], depth - 1);
-        Object.defineProperty(child, symbol, descriptor);
+        Object.defineProperty(child, symbol, _clone(descriptor));
       }
     }
 
@@ -200,7 +209,7 @@ function clone(parent, circular, depth, prototype, includeNonEnumerable) {
           continue;
         }
         child[propertyName] = _clone(parent[propertyName], depth - 1);
-        Object.defineProperty(child, propertyName, descriptor);
+        Object.defineProperty(child, propertyName, _clone(descriptor));
       }
     }
 

package.json

@@ -8,7 +8,7 @@
     "function",
     "date"
   ],
-  "version": "2.1.2",
+  "version": "2.1.3",
   "repository": {
     "type": "git",
     "url": "git://github.com/pvorb/node-clone.git"
@@ -40,7 +40,8 @@
     "Martin Jurča (https://github.com/jurca)",
     "Misery Lee <miserylee@foxmail.com> (https://github.com/miserylee)",
     "Clemens Wolff (https://github.com/c-w)",
-    "Sabin Thomas (https://github.com/sabinthomas)"
+    "Sabin Thomas (https://github.com/sabinthomas)",
+    "Guy Balaam (https://github.com/iambalaam)"
   ],
   "license": "MIT",
   "engines": {

test.js

@@ -469,6 +469,47 @@ if (nativeSet) {
   }
 }
 
+var nativeURLSearchParams;
+try {
+  nativeURLSearchParams = URLSearchParams;
+} catch (_) { }
+if (nativeURLSearchParams) {
+  exports["clone a native URLSearchParams"] = function (test) {
+    var searchParams = new URLSearchParams('?query=value');
+    // regular circular expando property
+    searchParams.circle = searchParams;
+
+    var clonedSearchParams = clone(searchParams);
+    test.notEqual(searchParams, clonedSearchParams);
+    test.equal(clonedSearchParams, clonedSearchParams.circle);
+
+    test.done()
+  }
+}
+
+var nativeURL;
+try {
+  nativeURL = URL;
+} catch (_) { }
+if (nativeURL) {
+  exports["clone a native URL"] = function (test) {
+    var url = new URL('https://example.com/path?query=value');
+    // regular circular expando property
+    url.circle = url;
+
+    var clonedUrl = clone(url);
+    test.notEqual(url, clonedUrl);
+    test.equal(clonedUrl.protocol, 'https:');
+    test.equal(clonedUrl.host, 'example.com');
+    test.equal(clonedUrl.pathname, '/path');
+    test.equal(clonedUrl.search, '?query=value');
+    test.equal(clonedUrl.circle, clonedUrl);
+    test.notEqual(url.searchParams, clonedUrl.searchParams);
+
+    test.done();
+  }
+}
+
 var nativePromise;
 try {
   nativePromise = Promise;