A module that acts as a service to request localy stored markdown file, this version includes a simple cache wrapper

simple-cache-system.js

var markdownService =(function(){
  var cache = function(fn){
    var c = {};
    return function(file, cb) {
      var item = c[file], 
      
      _cb = cb,
      
      cb = function(r) {
        var cFile = c[file];
        if(cFile) {
          cFile.content = r;
        }
        return _cb.apply(this, arguments);
      };
      
      item = item ? item : (c[file] = {
        filename: file,
        cb: cb,
        content: ''
      });
      
      if(item.content) {
        return cb.call(this, item.content);
      }
      
      fn.apply(this, arguments);
    }
  };
  
  return {
    baseUrl: './wiki/',
    base: "Home.md",
    request: cache(function(file, cb){
      return $.ajax({
        url: file,
        dataType: 'text',
        success: $.proxy(function(){
          cb.apply(this, arguments);
        }, this)
      });
    }),
    get: cache(function(file, cb) {
      if($.isFunction(file)) {
        cb = file;
        file = this.base;
      }
      
      file = file === "" ? this.base : file;
      
      return this.request(this.baseUrl + file, cb); 
    })
  }
})();