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145 lines
3.4 KiB
Markdown
145 lines
3.4 KiB
Markdown
# map-cache [](https://www.npmjs.com/package/map-cache) [](https://npmjs.org/package/map-cache) [](https://travis-ci.org/jonschlinkert/map-cache)
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Basic cache object for storing key-value pairs.
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## Install
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Install with [npm](https://www.npmjs.com/):
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```sh
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$ npm install map-cache --save
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```
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Based on MapCache in Lo-dash v3.0. [MIT License](https://github.com/lodash/lodash/blob/master/LICENSE.txt)
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## Usage
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```js
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var MapCache = require('map-cache');
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var mapCache = new MapCache();
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```
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## API
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### [MapCache](index.js#L28)
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Creates a cache object to store key/value pairs.
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**Example**
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```js
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var cache = new MapCache();
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```
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### [.set](index.js#L45)
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Adds `value` to `key` on the cache.
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**Params**
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* `key` **{String}**: The key of the value to cache.
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* `value` **{any}**: The value to cache.
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* `returns` **{Object}**: Returns the `Cache` object for chaining.
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**Example**
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```js
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cache.set('foo', 'bar');
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```
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### [.get](index.js#L65)
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Gets the cached value for `key`.
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**Params**
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* `key` **{String}**: The key of the value to get.
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* `returns` **{any}**: Returns the cached value.
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**Example**
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```js
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cache.get('foo');
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//=> 'bar'
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```
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### [.has](index.js#L82)
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Checks if a cached value for `key` exists.
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**Params**
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* `key` **{String}**: The key of the entry to check.
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* `returns` **{Boolean}**: Returns `true` if an entry for `key` exists, else `false`.
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**Example**
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```js
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cache.has('foo');
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//=> true
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```
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### [.del](index.js#L98)
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Removes `key` and its value from the cache.
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**Params**
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* `key` **{String}**: The key of the value to remove.
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* `returns` **{Boolean}**: Returns `true` if the entry was removed successfully, else `false`.
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**Example**
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```js
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cache.del('foo');
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```
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## Related projects
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You might also be interested in these projects:
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* [cache-base](https://www.npmjs.com/package/cache-base): Basic object cache with `get`, `set`, `del`, and `has` methods for node.js/javascript projects. | [homepage](https://github.com/jonschlinkert/cache-base)
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* [config-cache](https://www.npmjs.com/package/config-cache): General purpose JavaScript object storage methods. | [homepage](https://github.com/jonschlinkert/config-cache)
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* [option-cache](https://www.npmjs.com/package/option-cache): Simple API for managing options in JavaScript applications. | [homepage](https://github.com/jonschlinkert/option-cache)
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## Contributing
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Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/map-cache/issues/new).
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## Building docs
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Generate readme and API documentation with [verb](https://github.com/verbose/verb):
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```sh
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$ npm install verb && npm run docs
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```
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Or, if [verb](https://github.com/verbose/verb) is installed globally:
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```sh
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$ verb
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```
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## Running tests
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Install dev dependencies:
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```sh
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$ npm install -d && npm test
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```
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## Author
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**Jon Schlinkert**
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* [github/jonschlinkert](https://github.com/jonschlinkert)
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* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
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## License
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Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
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Released under the [MIT license](https://github.com/jonschlinkert/map-cache/blob/master/LICENSE).
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***
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_This file was generated by [verb](https://github.com/verbose/verb), v0.9.0, on May 10, 2016._ |