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183 lines
7.1 KiB
Markdown
183 lines
7.1 KiB
Markdown
# `@inquirer/checkbox`
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Simple interactive command line prompt to display a list of checkboxes (multi select).
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# Special Thanks
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<div align="center" markdown="1">
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[](https://graphite.dev/?utm_source=npmjs&utm_medium=repo&utm_campaign=inquirerjs)<br>
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### [Graphite is the AI developer productivity platform helping teams on GitHub ship higher quality software, faster](https://graphite.dev/?utm_source=npmjs&utm_medium=repo&utm_campaign=inquirerjs)
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</div>
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# Installation
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<table>
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<tr>
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<th>npm</th>
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<th>yarn</th>
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</tr>
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<tr>
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<td>
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```sh
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npm install @inquirer/prompts
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```
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</td>
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<td>
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```sh
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yarn add @inquirer/prompts
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```
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</td>
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</tr>
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<tr>
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<td colSpan="2" align="center">Or</td>
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</tr>
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<tr>
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<td>
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```sh
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npm install @inquirer/checkbox
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```
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</td>
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<td>
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```sh
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yarn add @inquirer/checkbox
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```
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</td>
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</tr>
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</table>
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# Usage
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```js
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import { checkbox, Separator } from '@inquirer/prompts';
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// Or
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// import checkbox, { Separator } from '@inquirer/checkbox';
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const answer = await checkbox({
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message: 'Select a package manager',
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choices: [
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{ name: 'npm', value: 'npm' },
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{ name: 'yarn', value: 'yarn' },
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new Separator(),
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{ name: 'pnpm', value: 'pnpm', disabled: true },
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{
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name: 'pnpm',
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value: 'pnpm',
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disabled: '(pnpm is not available)',
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},
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],
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});
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```
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## Options
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| Property | Type | Required | Description |
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| --------- | --------------------------------------- | -------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| message | `string` | yes | The question to ask |
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| choices | `Choice[]` | yes | List of the available choices. |
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| pageSize | `number` | no | By default, lists of choice longer than 7 will be paginated. Use this option to control how many choices will appear on the screen at once. |
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| loop | `boolean` | no | Defaults to `true`. When set to `false`, the cursor will be constrained to the top and bottom of the choice list without looping. |
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| required | `boolean` | no | When set to `true`, ensures at least one choice must be selected. |
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| validate | `async (Choice[]) => boolean \| string` | no | On submit, validate the choices. When returning a string, it'll be used as the error message displayed to the user. Note: returning a rejected promise, we'll assume a code error happened and crash. |
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| shortcuts | [See Shortcuts](#Shortcuts) | no | Customize shortcut keys for `all` and `invert`. |
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| theme | [See Theming](#Theming) | no | Customize look of the prompt. |
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`Separator` objects can be used in the `choices` array to render non-selectable lines in the choice list. By default it'll render a line, but you can provide the text as argument (`new Separator('-- Dependencies --')`). This option is often used to add labels to groups within long list of options.
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### `Choice` object
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The `Choice` object is typed as
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```ts
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type Choice<Value> = {
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value: Value;
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name?: string;
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description?: string;
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short?: string;
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checked?: boolean;
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disabled?: boolean | string;
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};
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```
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Here's each property:
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- `value`: The value is what will be returned by `await checkbox()`.
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- `name`: This is the string displayed in the choice list.
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- `description`: Option for a longer description string that'll appear under the list when the cursor highlight a given choice.
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- `short`: Once the prompt is done (press enter), we'll use `short` if defined to render next to the question. By default we'll use `name`.
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- `checked`: If `true`, the option will be checked by default.
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- `disabled`: Disallow the option from being selected. If `disabled` is a string, it'll be used as a help tip explaining why the choice isn't available.
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Also note the `choices` array can contain `Separator`s to help organize long lists.
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`choices` can also be an array of string, in which case the string will be used both as the `value` and the `name`.
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## Shortcuts
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You can customize the shortcut keys for `all` and `invert` or disable them by setting them to `null`.
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```ts
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type Shortcuts = {
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all?: string | null; // default: 'a'
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invert?: string | null; // default: 'i'
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};
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```
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## Theming
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You can theme a prompt by passing a `theme` object option. The theme object only need to includes the keys you wish to modify, we'll fallback on the defaults for the rest.
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```ts
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type Theme = {
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prefix: string | { idle: string; done: string };
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spinner: {
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interval: number;
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frames: string[];
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};
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style: {
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answer: (text: string) => string;
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message: (text: string, status: 'idle' | 'done' | 'loading') => string;
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error: (text: string) => string;
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defaultAnswer: (text: string) => string;
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help: (text: string) => string;
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highlight: (text: string) => string;
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key: (text: string) => string;
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disabledChoice: (text: string) => string;
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description: (text: string) => string;
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renderSelectedChoices: <T>(
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selectedChoices: ReadonlyArray<Choice<T>>,
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allChoices: ReadonlyArray<Choice<T> | Separator>,
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) => string;
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};
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icon: {
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checked: string;
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unchecked: string;
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cursor: string;
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};
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helpMode: 'always' | 'never' | 'auto';
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};
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```
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### `theme.helpMode`
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- `auto` (default): Hide the help tips after an interaction occurs. The scroll tip will hide after any interactions, the selection tip will hide as soon as a first selection is done.
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- `always`: The help tips will always show and never hide.
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- `never`: The help tips will never show.
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# License
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Copyright (c) 2023 Simon Boudrias (twitter: [@vaxilart](https://twitter.com/Vaxilart))<br/>
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Licensed under the MIT license.
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