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68 lines
1.4 KiB
68 lines
1.4 KiB
4 years ago
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# map-age-cleaner
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[](https://travis-ci.org/SamVerschueren/map-age-cleaner) [](https://codecov.io/gh/SamVerschueren/map-age-cleaner?branch=master)
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> Automatically cleanup expired items in a Map
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## Install
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```
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$ npm install map-age-cleaner
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```
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## Usage
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```js
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import mapAgeCleaner from 'map-age-cleaner';
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const map = new Map([
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['unicorn', {data: '🦄', maxAge: Date.now() + 1000}]
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]);
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mapAgeCleaner(map);
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map.has('unicorn');
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//=> true
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// Wait for 1 second...
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map.has('unicorn');
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//=> false
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```
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> **Note**: Items have to be ordered ascending based on the expiry property. This means that the item which will be expired first, should be in the first position of the `Map`.
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## API
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### mapAgeCleaner(map, [property])
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Returns the `Map` instance.
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#### map
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Type: `Map`
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Map instance which should be cleaned up.
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#### property
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Type: `string`<br>
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Default: `maxAge`
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Name of the property which olds the expiry timestamp.
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## Related
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- [expiry-map](https://github.com/SamVerschueren/expiry-map) - A `Map` implementation with expirable items
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- [expiry-set](https://github.com/SamVerschueren/expiry-set) - A `Set` implementation with expirable keys
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- [mem](https://github.com/sindresorhus/mem) - Memoize functions
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## License
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MIT © [Sam Verschueren](https://github.com/SamVerschueren)
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