Check if a property exists in the original object

lukeed · Sep 21, 2021 · 90938c5 · 90938c5
1 parent 8f1f269
commit 90938c5
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/index.js b/src/index.js
@@ -7,7 +7,7 @@ export function klona(x) {
 		if (x.constructor !== Object && typeof x.constructor === 'function') {
 			tmp = new x.constructor();
 			for (k in x) {
-				if (tmp[k] !== x[k]) {
+				if (x.hasOwnProperty(k) && tmp[k] !== x[k]) {
 					tmp[k] = klona(x[k]);
 				}
 			}

diff --git a/src/lite.js b/src/lite.js
@@ -7,7 +7,7 @@ export function klona(x) {
 		if (x.constructor !== Object && typeof x.constructor === 'function') {
 			tmp = new x.constructor();
 			for (k in x) {
-				if (tmp[k] !== x[k]) {
+				if (x.hasOwnProperty(k) && tmp[k] !== x[k]) {
 					tmp[k] = klona(x[k]);
 				}
 			}