TypeScript

Storybook provides an integrated TypeScript experience, including zero-configuration setup and built-in types for APIs, addons, and stories.

Configure Storybook with TypeScript

Storybook's configuration file (i.e., main.ts) is defined as an ESM module written in TypeScript, providing you with the baseline configuration to support your existing framework while enabling you stricter type-checking and autocompletion in your editor. Below is an abridged configuration file.

See the main configuration API reference for more details and additional properties.

Extending the default configuration

// Replace your-framework with the framework you are using (e.g., react-webpack5, vue3-vite)
import type { StorybookConfig } from '@storybook/your-framework';
 
const config: StorybookConfig = {
  framework: '@storybook/your-framework',
  stories: ['../src/**/*.mdx', '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)'],
  typescript: {
    check: false,
    checkOptions: {},
    skipCompiler: false,
  },
};
 
export default config;

Write stories with TypeScript

Storybook provides zero-config TypeScript support, allowing you to write stories using this language without additional configuration. You can use this format for improved type safety and code completion. For example, if you're testing a Button component, you could do the following in your story file:

import type { Meta, StoryObj } from '@storybook/angular';
 
import { Button } from './button.component';
 
const meta: Meta<Button> = {
  component: Button,
};
 
export default meta;
type Story = StoryObj<Button>;
 
//👇 Throws a type error it the args don't match the component props
export const Primary: Story = {
  args: {
    primary: true,
  },
};

The example above uses the power of TypeScript in combination with the exported generic types (Meta and StoryObj) to tell Storybook how to infer the component's metadata and the type of the component's inputs (e.g., props). This can greatly improve the developer experience by letting your IDE show you what properties are injected by Storybook.

TypeScript 4.9 support

Assuming that you're working on a project that uses TypeScript 4.9+, you can update your component stories to use the new satisfies operator to ensure stricter type checking for your component stories. For example:

// Replace your-framework with the name of your framework
import type { Meta } from '@storybook/<your-framework>';
 
import { Button } from './Button';
 
const meta = {
  component: Button,
} satisfies Meta<typeof Button>; // 👈 Satisfies operator being used for stricter type checking.
 
export default meta;

Now, when you define a story or update an existing one, you'll automatically get notified that you're missing a required arg. However, you're not limited to using the satisfies operator at the component level. If you need, you can also use it at the story level. For example:

// Replace your-framework with the name of your framework
import type { Meta, StoryObj } from '@storybook/your-framework';
 
import { Button } from './Button';
 
const meta = {
  component: Button,
} satisfies Meta<typeof Button>;
 
export default meta;
type Story = StoryObj<typeof meta>;
 
export const Example = {
  args: {
    primary: true,
    label: 'Button',
  },
} satisfies Story;

Troubleshooting

The satisfies operator is not working as expected

Out of the box, Storybook supports the satisfies operator for almost every framework already using TypeScript version 4.9 or higher. However, due to the constraints of the Angular and Web Components framework, you might run into issues when applying this operator for additional type safety. This is primarily due to how both frameworks are currently implemented, making it almost impossible for Storybook to determine if the component property is required. If you encounter this issue, please open up a support request on GitHub Discussions.