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84 lines
1.1 KiB
Markdown
84 lines
1.1 KiB
Markdown
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# yn [](https://travis-ci.org/sindresorhus/yn)
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> Parse yes/no like values
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Useful for validating answers of a CLI prompt.
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---
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The following case-insensitive values are recognized:
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```js
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'y', 'yes', 'true', true, '1', 1, 'n', 'no', 'false', false, '0', 0
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```
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*Enable lenient mode to gracefully handle typos.*
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## Install
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```
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$ npm install yn
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```
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## Usage
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```js
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const yn = require('yn');
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yn('y');
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//=> true
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yn('NO');
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//=> false
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yn(true);
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//=> true
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yn('abomasum');
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//=> null
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yn('abomasum', {default: false});
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//=> false
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yn('mo', {lenient: true});
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//=> false
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```
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Unrecognized values return `null`.
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## API
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### yn(input, [options])
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#### input
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Type: `any`
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Value that should be converted.
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#### options
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Type: `Object`
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##### lenient
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Type: `boolean`<br>
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Default: `false`
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Use a key distance-based score to leniently accept typos of `yes` and `no`.
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##### default
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Type: `boolean`<br>
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Default: `null`
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Default value if no match was found.
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## License
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MIT © [Sindre Sorhus](https://sindresorhus.com)
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