70 lines
2.0 KiB
Markdown
70 lines
2.0 KiB
Markdown
# individual
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[![build status][build-png]][build] [![Coverage Status][cover-png]][cover] [![Davis Dependency status][dep-png]][dep]
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[![NPM][npm-png]][npm]
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[![browser support][test-png]][test]
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Garantueed individual values
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## Example
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```js
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var Individual = require("individual")
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var moduleCache = Individual("__MY_MODULE_CACHE", {})
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// moduleCache is a individual variable local to this file.
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// It will always be the same value and defaults to {}.
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```
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This gives you a singleton value by a unique name (it stores it
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as a global variable).
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## Use cases
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Your module has an internal cache. If your module is loaded
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twice, (someone didn't npm dedup and has two copies of your
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module) you would have two seperate caches that dont talk
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to each other.
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Best case your cache is less efficient. Worst case you have a
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cache because the native C++ extension you talk to crashes
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if you instantiate something twice.
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You need a garantuee that this value is an individual, there is
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only one of it.
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I use it myself because opening a SockJS websocket to the same
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URI twice causes an infinite loop. I need a garantuee that
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I have an individual value for the SockJS connection so I
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can see whether I already have an open connection.
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## WHY GLOBALS >:(
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I can't imagine any other way to do it. I hate it too. Make a
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pull request if you know the real solution
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## Installation
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`npm install individual`
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## Contributors
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- Raynos
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## MIT Licenced
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[build-png]: https://secure.travis-ci.org/Raynos/individual.png
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[build]: https://travis-ci.org/Raynos/individual
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[cover-png]: https://coveralls.io/repos/Raynos/individual/badge.png
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[cover]: https://coveralls.io/r/Raynos/individual
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[dep-png]: https://david-dm.org/Raynos/individual.png
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[dep]: https://david-dm.org/Raynos/individual
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[test-png]: https://ci.testling.com/Raynos/individual.png
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[test]: https://ci.testling.com/Raynos/individual
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[npm-png]: https://nodei.co/npm/individual.png?stars&downloads
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[npm]: https://nodei.co/npm/individual
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