diff options
| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/map-cache/index.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
switch to vuepress
Diffstat (limited to 'node_modules/map-cache/index.js')
| -rw-r--r-- | node_modules/map-cache/index.js | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/node_modules/map-cache/index.js b/node_modules/map-cache/index.js new file mode 100644 index 00000000..f86842f2 --- /dev/null +++ b/node_modules/map-cache/index.js @@ -0,0 +1,100 @@ +/*! + * map-cache <https://github.com/jonschlinkert/map-cache> + * + * Copyright (c) 2015, Jon Schlinkert. + * Licensed under the MIT License. + */ + +'use strict'; + +var hasOwn = Object.prototype.hasOwnProperty; + +/** + * Expose `MapCache` + */ + +module.exports = MapCache; + +/** + * Creates a cache object to store key/value pairs. + * + * ```js + * var cache = new MapCache(); + * ``` + * + * @api public + */ + +function MapCache(data) { + this.__data__ = data || {}; +} + +/** + * Adds `value` to `key` on the cache. + * + * ```js + * cache.set('foo', 'bar'); + * ``` + * + * @param {String} `key` The key of the value to cache. + * @param {*} `value` The value to cache. + * @returns {Object} Returns the `Cache` object for chaining. + * @api public + */ + +MapCache.prototype.set = function mapSet(key, value) { + if (key !== '__proto__') { + this.__data__[key] = value; + } + return this; +}; + +/** + * Gets the cached value for `key`. + * + * ```js + * cache.get('foo'); + * //=> 'bar' + * ``` + * + * @param {String} `key` The key of the value to get. + * @returns {*} Returns the cached value. + * @api public + */ + +MapCache.prototype.get = function mapGet(key) { + return key === '__proto__' ? undefined : this.__data__[key]; +}; + +/** + * Checks if a cached value for `key` exists. + * + * ```js + * cache.has('foo'); + * //=> true + * ``` + * + * @param {String} `key` The key of the entry to check. + * @returns {Boolean} Returns `true` if an entry for `key` exists, else `false`. + * @api public + */ + +MapCache.prototype.has = function mapHas(key) { + return key !== '__proto__' && hasOwn.call(this.__data__, key); +}; + +/** + * Removes `key` and its value from the cache. + * + * ```js + * cache.del('foo'); + * ``` + * @title .del + * @param {String} `key` The key of the value to remove. + * @returns {Boolean} Returns `true` if the entry was removed successfully, else `false`. + * @api public + */ + +MapCache.prototype.del = function mapDelete(key) { + return this.has(key) && delete this.__data__[key]; +}; |
