Fix handling of sparse arrays (#110)

index.js

@@ -295,12 +295,12 @@ export function escapePath(path) {
 
 // The keys returned by Object.entries() for arrays are strings
 function entries(value) {
+	const result = Object.entries(value);
 	if (Array.isArray(value)) {
-		// We use `[...value]` to convert sparse entries to normal ones.
-		return [...value].map((value, index) => [index, value]);
+		return result.map(([key, value]) => [Number(key), value]);
 	}
 
-	return Object.entries(value);
+	return result;
 }
 
 function stringifyPath(pathSegments) {

readme.md

@@ -135,7 +135,7 @@ for (const property of deepKeys(user)) {
 }
 ```
 
-Sparse arrays are supported, but holes are filled. In general, [avoid using sparse arrays](https://github.com/sindresorhus/dot-prop/issues/109#issuecomment-1614819869).
+Sparse arrays are supported. In general, [avoid using sparse arrays](https://github.com/sindresorhus/dot-prop/issues/109#issuecomment-1614819869).
 
 #### object
 

test.js

@@ -473,7 +473,6 @@ test('deepKeys - does not throw on sparse array', t => {
 
 	t.deepEqual(keys, [
 		'sparse[0]',
-		'sparse[1]',
 		'sparse[2]',
 	]);
 });