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Author: RazinShafayet2007

packages/kit/src/runtime/form-utils.js

@@ -466,14 +466,14 @@ export function deep_set(object, keys, value) {
 		check_prototype_pollution(key);
 
 		const is_array = /^\d+$/.test(keys[i + 1]);
-		const exists = Object.hasOwn(current, key);
-		const inner = current[key];
+		const inner = Object.hasOwn(current, key) ? current[key] : undefined;
+		const exists = inner != null;
 
-		if (exists && inner != null && is_array !== Array.isArray(inner)) {
+		if (exists && is_array !== Array.isArray(inner)) {
 			throw new Error(`Invalid array key ${keys[i + 1]}`);
 		}
 
-		if (!exists || inner == null) {
+		if (!exists) {
 			current[key] = is_array ? [] : {};
 		}