fix deepkeys to work with empty arrays and objects

sindresorhus · Mar 6, 2023 · 8f27bed · 8f27bed
1 parent 7cfa81f
commit 8f27bed
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Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/index.js b/index.js
@@ -3,6 +3,8 @@ const isObject = value => {
 	return value !== null && (type === 'object' || type === 'function');
 };
 
+const isEmptyObject = value => isObject(value) && Object.keys(value).length === 0;
+
 const disallowedKeys = new Set([
 	'__proto__',
 	'prototype',
@@ -326,6 +328,10 @@ function * deepKeysIterator(object, currentPath = []) {
 
 	for (const [key, value] of entries(object)) {
 		yield * deepKeysIterator(value, [...currentPath, key]);
+
+		if (isEmptyObject(value)) {
+			yield key;
+		}
 	}
 }
 

diff --git a/test.js b/test.js
@@ -420,6 +420,8 @@ test('deepKeys', t => {
 				}],
 				e: '🦄',
 				f: 0,
+				h: {},
+				i: [],
 			},
 			'': {
 				a: 0,
@@ -437,6 +439,8 @@ test('deepKeys', t => {
 		'a\\.b.c.d[2].g',
 		'a\\.b.c.e',
 		'a\\.b.c.f',
+		'h',
+		'i',
 		'a\\.b..a',
 		'.a',
 	]);