add class node how to use url & querystring

kugoucode · Jan 18, 2016 · 87728e4 · 87728e4
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diff --git a/class-querystring/Readme.md b/class-querystring/Readme.md
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+# node class query string
+
+## query string
+
+``` JavaScript
+$ node
+# 格式化Query对象为字符串( & / =)
+> querystring.stringify({name:'mark',class:['node','php'],from:'baidu'})
+'name=mark&class=node&class=php&from=baidu'
+# 指定第二个参数格式化Query对象(, / =)
+> querystring.stringify({name:'mark',class:['node','php'],from:'baidu'}, ',')
+'name=mark,class=node,class=php,from=baidu'
+# 指定第二个参数与第三个参数格式化Query对象(, / :)
+> querystring.stringify({name:'mark',class:['node','php'],from:'baidu'}, ',', ':')
+'name:mark,class:node,class:php,from:baidu'
+
+# 格式化字符串为Query对象
+> querystring.parse('name=mark&class=node&class=php&from=baidu')
+{ name: 'mark', class: [ 'node', 'php' ], from: 'baidu' }
+> querystring.parse('name=mark,class=node,class=php,from=baidu', ',')
+{ name: 'mark', class: [ 'node', 'php' ], from: 'baidu' }
+> querystring.parse('name:mark,class:node,class:php,from:baidu', ',', ':')
+{ name: 'mark', class: [ 'node', 'php' ], from: 'baidu' }
+
+# query 字符串转义与非转义
+> querystring.escape('<哈哈>')
+'%3C%E5%93%88%E5%93%88%3E'
+> querystring.unescape('%3C%E5%93%88%E5%93%88%3E')
+'<哈哈>'
+```
diff --git a/class-url/Readme.md b/class-url/Readme.md
@@ -0,0 +1,98 @@
+# class url
+
+## node cli for url
+
+``` nodejs
+# 进入 node 命令行模式
+$ node
+
+# 输入 url ,可以看到url在node中的方法
+> url
+{ parse: [Function: urlParse],
+ resolve: [Function: urlResolve],
+ resolveObject: [Function: urlResolveObject],
+ format: [Function: urlFormat],
+ Url: [Function: Url] }
+
+# 使用url.parse方法解析url
+> url.parse('http:https://www.baidu.com:8900/s?word=xxx#maodian')
+Url {
+ protocol: 'http:',
+ slashes: true,
+ auth: null,
+ host: 'www.baidu.com:8900',
+ port: '8900',
+ hostname: 'www.baidu.com',
+ hash: '#maodian',
+ search: '?word=xxx',
+ query: 'word=xxx',
+ pathname: '/s',
+ path: '/s?word=xxx',
+ href: 'http:https://www.baidu.com:8900/s?word=xxx#maodian' }
+
+# url格式化对象Query转换为对象形式
+> url.parse('http:https://www.baidu.com:8900/s?word=xxx#maodian', true)
+Url {
+ protocol: 'http:',
+ slashes: true,
+ auth: null,
+ host: 'www.baidu.com:8900',
+ port: '8900',
+ hostname: 'www.baidu.com',
+ hash: '#maodian',
+ search: '?word=xxx',
+ query: { word: 'xxx' }, # 注意这里的变化
+ pathname: '/s',
+ path: '/s?word=xxx',
+ href: 'http:https://www.baidu.com:8900/s?word=xxx#maodian' }
+
+# 针对未指定协议的url进行解析 [注意下面两个有与没有第三个参数的区别]
+> url.parse('//www.baidu.com:8900/s?word=xxx#maodian', true)
+Url {
+ protocol: null,
+ slashes: null,
+ auth: null,
+ host: null,
+ port: null,
+ hostname: null,
+ hash: '#maodian',
+ search: '?word=xxx',
+ query: { word: 'xxx' },
+ pathname: '//www.baidu.com:8900/s',
+ path: '//www.baidu.com:8900/s?word=xxx',
+ href: '//www.baidu.com:8900/s?word=xxx#maodian' }
+> url.parse('//www.baidu.com:8900/s?word=xxx#maodian', true, true)
+Url {
+ protocol: null,
+ slashes: true,
+ auth: null,
+ host: 'www.baidu.com:8900',
+ port: '8900',
+ hostname: 'www.baidu.com',
+ hash: '#maodian',
+ search: '?word=xxx',
+ query: { word: 'xxx' },
+ pathname: '/s',
+ path: '/s?word=xxx',
+ href: '//www.baidu.com:8900/s?word=xxx#maodian' }
+
+# 将url格式化的对象转换成url
+> url.format({
+... protocol: 'http:',
+... slashes: true,
+... auth: null,
+... host: 'www.baidu.com:8900',
+... port: '8900',
+... hostname: 'www.baidu.com',
+... hash: '#maodian',
+... search: '?word=xxx',
+... query: 'word=xxx',
+... pathname: '/s',
+... path: '/s?word=xxx',
+... href: 'http:https://www.baidu.com:8900/s?word=xxx#maodian' })
+'http:https://www.baidu.com:8900/s?word=xxx#maodian'
+
+# url路径的拼接 
+> url.resolve('http:https://www.baidu.com/', 's?word=xxx#maodian')
+'http:https://www.baidu.com/s?word=xxx#maodian'
+```