docs：更新文档

node_modules/only/.npmignore

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+support
+test
+examples
+*.sock

node_modules/only/History.md

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+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release

node_modules/only/Makefile

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+
+test:
+	@./node_modules/.bin/mocha \
+		--require should \
+		--reporter spec
+
+.PHONY: test

node_modules/only/Readme.md

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+
+# only
+
+  Return whitelisted properties of an object.
+
+## Installation
+
+    $ npm install only
+
+## API
+
+ An array or space-delimited string may be given:
+
+```js
+var obj = {
+  name: 'tobi',
+  last: 'holowaychuk',
+  email: 'tobi@learnboost.com',
+  _id: '12345'
+};
+
+var user = only(obj, 'name last email');
+```
+
+yields:
+
+```js
+{
+  name: 'tobi',
+  last: 'holowaychuk',
+  email: 'tobi@learnboost.com'
+}
+```
+
+## License 
+
+(The MIT License)
+
+Copyright (c) 2012 TJ Holowaychuk <tj@vision-media.ca>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

node_modules/only/index.js

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+
+module.exports = function(obj, keys){
+  obj = obj || {};
+  if ('string' == typeof keys) keys = keys.split(/ +/);
+  return keys.reduce(function(ret, key){
+    if (null == obj[key]) return ret;
+    ret[key] = obj[key];
+    return ret;
+  }, {});
+};

node_modules/only/package.json

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+{
+  "_args": [
+    [
+      "only@0.0.2",
+      "J:\\Github\\CURD-TS"
+    ]
+  ],
+  "_development": true,
+  "_from": "only@0.0.2",
+  "_id": "only@0.0.2",
+  "_inBundle": false,
+  "_integrity": "sha1-Kv3oTQPlC5qO3EROMGEKcCle37Q=",
+  "_location": "/only",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "only@0.0.2",
+    "name": "only",
+    "escapedName": "only",
+    "rawSpec": "0.0.2",
+    "saveSpec": null,
+    "fetchSpec": "0.0.2"
+  },
+  "_requiredBy": [
+    "/koa"
+  ],
+  "_resolved": "http://192.168.250.101:4873/only/-/only-0.0.2.tgz",
+  "_spec": "0.0.2",
+  "_where": "J:\\Github\\CURD-TS",
+  "author": {
+    "name": "TJ Holowaychuk",
+    "email": "tj@vision-media.ca"
+  },
+  "bugs": {
+    "url": "https://github.com/visionmedia/node-only/issues"
+  },
+  "dependencies": {},
+  "description": "return whitelisted properties of an object",
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "homepage": "https://github.com/visionmedia/node-only#readme",
+  "keywords": [
+    "utility",
+    "util",
+    "object",
+    "whitelist"
+  ],
+  "main": "index",
+  "name": "only",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/visionmedia/node-only.git"
+  },
+  "version": "0.0.2"
+}