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node_modules/utile/README.md
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# utile [](http://travis-ci.org/flatiron/utile)
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A drop-in replacement for `util` with some additional advantageous functions
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## Motivation
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Javascript is definitely a "batteries not included language" when compared to languages like Ruby or Python. Node.js has a simple utility library which exposes some basic (but important) functionality:
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```
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$ node
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> var util = require('util');
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> util.
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(...)
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util.debug util.error util.exec util.inherits util.inspect
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util.log util.p util.print util.pump util.puts
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```
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When one considers their own utility library, why ever bother requiring `util` again? That is the approach taken by this module. To compare:
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```
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$ node
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> var utile = require('./lib')
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> utile.
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(...)
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utile.async utile.capitalize utile.clone utile.cpr utile.createPath utile.debug
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utile.each utile.error utile.exec utile.file utile.filter utile.find
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utile.inherits utile.log utile.mixin utile.mkdirp utile.p utile.path
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utile.print utile.pump utile.puts utile.randomString utile.requireDir uile.requireDirLazy
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utile.rimraf
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```
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As you can see all of the original methods from `util` are there, but there are several new methods specific to `utile`. A note about implementation: _no node.js native modules are modified by utile, it simply copies those methods._
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## Methods
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The `utile` modules exposes some simple utility methods:
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* `.each(obj, iterator)`: Iterate over the keys of an object.
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* `.mixin(target [source0, source1, ...])`: Copies enumerable properties from `source0 ... sourceN` onto `target` and returns the resulting object.
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* `.clone(obj)`: Shallow clones the specified object.
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* `.capitalize(str)`: Capitalizes the specified `str`.
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* `.randomString(length)`: randomString returns a pseudo-random ASCII string (subset) the return value is a string of length ⌈bits/6⌉ of characters from the base64 alphabet.
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* `.filter(obj, test)`: return an object with the properties that `test` returns true on.
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* `.args(arguments)`: Converts function arguments into actual array with special `callback`, `cb`, `array`, and `last` properties. Also supports *optional* argument contracts. See [the example](https://github.com/flatiron/utile/blob/master/examples/utile-args.js) for more details.
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* `.requireDir(directory)`: Requires all files and directories from `directory`, returning an object with keys being filenames (without trailing `.js`) and respective values being return values of `require(filename)`.
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* `.requireDirLazy(directory)`: Lazily requires all files and directories from `directory`, returning an object with keys being filenames (without trailing `.js`) and respective values (getters) being return values of `require(filename)`.
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* `.format([string] text, [array] formats, [array] replacements)`: Replace `formats` in `text` with `replacements`. This will fall back to the original `util.format` command if it is called improperly.
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## Packaged Dependencies
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In addition to the methods that are built-in, utile includes a number of commonly used dependencies to reduce the number of includes in your package.json. These modules _are not eagerly loaded to be respectful of startup time,_ but instead are lazy-loaded getters on the `utile` object
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* `.async`: [Async utilities for node and the browser][0]
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* `.inflect`: [Customizable inflections for node.js][6]
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* `.mkdirp`: [Recursively mkdir, like mkdir -p, but in node.js][1]
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* `.rimraf`: [A rm -rf util for nodejs][2]
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* `.cpr`: [Asynchronous recursive file copying with Node.js][3]
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## Installation
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### Installing npm (node package manager)
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```
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curl http://npmjs.org/install.sh | sh
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```
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### Installing utile
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```
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[sudo] npm install utile
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```
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## Tests
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All tests are written with [vows][4] and should be run with [npm][5]:
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``` bash
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$ npm test
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```
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#### Author: [Nodejitsu Inc.](http://www.nodejitsu.com)
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#### Contributors: [Charlie Robbins](http://github.com/indexzero), [Dominic Tarr](http://github.com/dominictarr)
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#### License: MIT
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[0]: https://github.com/caolan/async
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[1]: https://github.com/substack/node-mkdirp
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[2]: https://github.com/isaacs/rimraf
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[3]: https://github.com/avianflu/ncp
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[4]: https://vowsjs.org
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[5]: https://npmjs.org
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[6]: https://github.com/pksunkara/inflect
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