From 61882cb56bf11a4152170a8d6464688395a17e2b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mati=20K=C3=A4rner?= <mati.karner@gmail.com>
Date: Thu, 15 Oct 2020 16:49:35 +0300
Subject: [PATCH 1/2] Use 'toId' without story

---
 src/index.test.ts | 7 +++++--
 src/index.ts      | 6 ++++--
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/index.test.ts b/src/index.test.ts
index 27d0095..b5b4aa4 100644
--- a/src/index.test.ts
+++ b/src/index.test.ts
@@ -1,9 +1,10 @@
 import { toId, storyNameFromExport, isExportStory } from '.';
 
 describe('toId', () => {
-  [
+  const testCases: [string, string, string | undefined, string][] = [
     // name, kind, story, output
     ['handles simple cases', 'kind', 'story', 'kind--story'],
+    ['handles kind without story', 'kind', undefined, 'kind'],
     ['handles basic substitution', 'a b$c?d😀e', '1-2:3', 'a-b-c-d😀e--1-2-3'],
     ['handles runs of non-url chars', 'a?&*b', 'story', 'a-b--story'],
     ['removes non-url chars from start and end', '?ab-', 'story', 'ab--story'],
@@ -11,7 +12,9 @@ describe('toId', () => {
     ['non-latin', 'Кнопки', 'нормальный', 'кнопки--нормальный'],
     ['korean', 'kind', '바보 (babo)', 'kind--바보-babo'],
     ['all punctuation', 'kind', 'unicorns,’–—―′¿`"<>()!.!!!{}[]%^&$*#&', 'kind--unicorns'],
-  ].forEach(([name, kind, story, output]) => {
+  ];
+
+  testCases.forEach(([name, kind, story, output]) => {
     it(name, () => {
       expect(toId(kind, story)).toBe(output);
     });
diff --git a/src/index.ts b/src/index.ts
index 136583a..73fb39f 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -28,8 +28,10 @@ const sanitizeSafe = (string: string, part: string) => {
 /**
  * Generate a storybook ID from a component/kind and story name.
  */
-export const toId = (kind: string, name: string) =>
-  `${sanitizeSafe(kind, 'kind')}--${sanitizeSafe(name, 'name')}`;
+export const toId = (kind: string, name?: string) =>
+  `${sanitizeSafe(kind, 'kind')}${
+    typeof name === 'string' ? `--${sanitizeSafe(name, 'name')}` : ''
+  }`;
 
 /**
  * Transform a CSF named export into a readable story name

From eb0e9b4dfe25ba62fc0d7eb3399222b735f962a0 Mon Sep 17 00:00:00 2001
From: Gert Hengeveld <info@ghengeveld.nl>
Date: Fri, 1 Oct 2021 14:07:21 +0200
Subject: [PATCH 2/2] Allow empty string for story

---
 src/index.test.ts | 4 ++--
 src/index.ts      | 4 +---
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/index.test.ts b/src/index.test.ts
index b5b4aa4..1874d5b 100644
--- a/src/index.test.ts
+++ b/src/index.test.ts
@@ -36,8 +36,8 @@ describe('toId', () => {
     );
   });
 
-  it('does not allow empty story', () => {
-    expect(() => toId('kind', '')).toThrow(`Invalid name '', must include alphanumeric characters`);
+  it('allows empty story', () => {
+    expect(() => toId('kind', '')).not.toThrow();
   });
 });
 
diff --git a/src/index.ts b/src/index.ts
index 73fb39f..e9c1b90 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -29,9 +29,7 @@ const sanitizeSafe = (string: string, part: string) => {
  * Generate a storybook ID from a component/kind and story name.
  */
 export const toId = (kind: string, name?: string) =>
-  `${sanitizeSafe(kind, 'kind')}${
-    typeof name === 'string' ? `--${sanitizeSafe(name, 'name')}` : ''
-  }`;
+  `${sanitizeSafe(kind, 'kind')}${name ? `--${sanitizeSafe(name, 'name')}` : ''}`;
 
 /**
  * Transform a CSF named export into a readable story name