1 | # fragment-cache [![NPM version](https://img.shields.io/npm/v/fragment-cache.svg?style=flat)](https://www.npmjs.com/package/fragment-cache) [![NPM downloads](https://img.shields.io/npm/dm/fragment-cache.svg?style=flat)](https://npmjs.org/package/fragment-cache) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/fragment-cache.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/fragment-cache)
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2 |
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3 | > A cache for managing namespaced sub-caches
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4 |
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5 | ## Install
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6 |
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7 | Install with [npm](https://www.npmjs.com/):
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8 |
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9 | ```sh
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10 | $ npm install --save fragment-cache
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11 | ```
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12 |
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13 | ## Usage
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14 |
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15 | ```js
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16 | var Fragment = require('fragment-cache');
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17 | var fragment = new Fragment();
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18 | ```
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19 |
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20 | ## API
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21 |
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22 | ### [FragmentCache](index.js#L24)
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23 |
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24 | Create a new `FragmentCache` with an optional object to use for `caches`.
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25 |
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26 | **Example**
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27 |
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28 | ```js
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29 | var fragment = new FragmentCache();
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30 | ```
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31 |
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32 | **Params**
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33 |
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34 | * `cacheName` **{String}**
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35 | * `returns` **{Object}**: Returns the [map-cache](https://github.com/jonschlinkert/map-cache) instance.
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36 |
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37 | ### [.cache](index.js#L49)
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38 |
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39 | Get cache `name` from the `fragment.caches` object. Creates a new `MapCache` if it doesn't already exist.
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40 |
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41 | **Example**
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42 |
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43 | ```js
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44 | var cache = fragment.cache('files');
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45 | console.log(fragment.caches.hasOwnProperty('files'));
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46 | //=> true
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47 | ```
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48 |
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49 | **Params**
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50 |
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51 | * `cacheName` **{String}**
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52 | * `returns` **{Object}**: Returns the [map-cache](https://github.com/jonschlinkert/map-cache) instance.
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53 |
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54 | ### [.set](index.js#L67)
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55 |
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56 | Set a value for property `key` on cache `name`
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57 |
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58 | **Example**
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59 |
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60 | ```js
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61 | fragment.set('files', 'somefile.js', new File({path: 'somefile.js'}));
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62 | ```
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63 |
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64 | **Params**
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65 |
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66 | * `name` **{String}**
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67 | * `key` **{String}**: Property name to set
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68 | * `val` **{any}**: The value of `key`
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69 | * `returns` **{Object}**: The cache instance for chaining
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70 |
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71 | ### [.has](index.js#L93)
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72 |
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73 | Returns true if a non-undefined value is set for `key` on fragment cache `name`.
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74 |
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75 | **Example**
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76 |
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77 | ```js
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78 | var cache = fragment.cache('files');
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79 | cache.set('somefile.js');
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80 |
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81 | console.log(cache.has('somefile.js'));
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82 | //=> true
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83 |
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84 | console.log(cache.has('some-other-file.js'));
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85 | //=> false
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86 | ```
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87 |
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88 | **Params**
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89 |
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90 | * `name` **{String}**: Cache name
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91 | * `key` **{String}**: Optionally specify a property to check for on cache `name`
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92 | * `returns` **{Boolean}**
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93 |
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94 | ### [.get](index.js#L115)
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95 |
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96 | Get `name`, or if specified, the value of `key`. Invokes the [cache](#cache) method, so that cache `name` will be created it doesn't already exist. If `key` is not passed, the entire cache (`name`) is returned.
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97 |
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98 | **Example**
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99 |
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100 | ```js
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101 | var Vinyl = require('vinyl');
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102 | var cache = fragment.cache('files');
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103 | cache.set('somefile.js', new Vinyl({path: 'somefile.js'}));
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104 | console.log(cache.get('somefile.js'));
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105 | //=> <File "somefile.js">
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106 | ```
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107 |
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108 | **Params**
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109 |
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110 | * `name` **{String}**
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111 | * `returns` **{Object}**: Returns cache `name`, or the value of `key` if specified
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112 |
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113 | ## About
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114 |
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115 | ### Related projects
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116 |
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117 | * [base](https://www.npmjs.com/package/base): base is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting… [more](https://github.com/node-base/base) | [homepage](https://github.com/node-base/base "base is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting with a handful of common methods, like `set`, `get`, `del` and `use`.")
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118 | * [map-cache](https://www.npmjs.com/package/map-cache): Basic cache object for storing key-value pairs. | [homepage](https://github.com/jonschlinkert/map-cache "Basic cache object for storing key-value pairs.")
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119 |
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120 | ### Contributing
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121 |
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122 | Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
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123 |
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124 | ### Building docs
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125 |
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126 | _(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_
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127 |
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128 | To generate the readme and API documentation with [verb](https://github.com/verbose/verb):
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129 |
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130 | ```sh
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131 | $ npm install -g verb verb-generate-readme && verb
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132 | ```
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133 |
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134 | ### Running tests
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135 |
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136 | Install dev dependencies:
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137 |
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138 | ```sh
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139 | $ npm install -d && npm test
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140 | ```
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141 |
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142 | ### Author
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143 |
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144 | **Jon Schlinkert**
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145 |
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146 | * [github/jonschlinkert](https://github.com/jonschlinkert)
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147 | * [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
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148 |
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149 | ### License
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150 |
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151 | Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
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152 | Released under the [MIT license](https://github.com/jonschlinkert/fragment-cache/blob/master/LICENSE).
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153 |
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154 | ***
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155 |
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156 | _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.2.0, on October 17, 2016._ |
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