chore: return early when input is empty

Author: webdeveric

src/pathParts.ts

@@ -1,4 +1,8 @@
 export function* pathParts(input: PropertyKey): Generator<PropertyKey> {
+  if (input === '') {
+    return;
+  }
+
   if (typeof input !== 'string') {
     yield input;
 

test/pathParts.test.ts

@@ -23,4 +23,8 @@ describe('pathParts()', () => {
   it('returns input for non-string input', () => {
     expect(Array.from(pathParts(123))).toEqual([123]);
   });
+
+  it('returns empty array for empty string input', () => {
+    expect(Array.from(pathParts(''))).toEqual([]);
+  });
 });