【每日一包0028】cachecontenttype,mimetypes

[github地址：https://github.com/ABCDdouyae&＃8230;]

cache-content-type(koa2源码依赖)

http响应头部工具包， 基于mime-types包，对结果进行了缓存

const getType = require('cache-content-type');
const cOntentType= getType('html');
console.log(contentType);//text/html; charset=utf-8


mime-types

mime.lookup(path)

mime.lookup('json') // 'application/json'
mime.lookup('.md') // 'text/markdown'
mime.lookup('file.html') // 'text/html'
mime.lookup('folder/file.js') // 'application/Javascript'
mime.lookup('folder/.htaccess') // false
mime.lookup('cats') // false

mime.contentType(type) 获取完成的头部

mime.contentType('markdown') // 'text/x-markdown; charset=utf-8'
mime.contentType('file.json') // 'application/json; charset=utf-8'
// from a full path
mime.contentType(path.extname('/path/to/file.json')) // 'application/json; charset=utf-8'

mime.extension(type) 获取类型的默认扩展名

mime.extension('application/octet-stream') // 'bin'

mime.charset(type) 获取默认字符编码

mime.charset('text/markdown') // 'UTF-8'