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precompile

预处理，主要是指针对需要编译的做的处理，比如js和css和html都有更好的写法。

  • js： coffee、ts
  • css： styleus、sass、scss、postcss
  • html：各种模块，ejs、jade等，后面会单独讲

css precompile

create project

➜  nodejs-practice git:(master) express -h

  Usage: express [options] [dir]

  Options:

    -h, --help          output usage information
    -V, --version       output the version number
    -e, --ejs           add ejs engine support (defaults to jade)
        --hbs           add handlebars engine support
    -H, --hogan         add hogan.js engine support
    -c, --css <engine>  add stylesheet <engine> support (less|stylus|compass|sass) (defaults to plain css)
        --git           add .gitignore
    -f, --force         force on non-empty directory

举例less

express express-less -c less

变动

  • package.json
    • "less-middleware": "1.0.x",
  • app.js
    • app.use(require('less-middleware')(path.join(__dirname, 'public')));

创建less

npm i -g less
lessc public/stylesheets/style.less public/stylesheets/style.css

js precompile

举例coffee

http://coffeescript.org/

gulp