どこかで見かけたProxyのサンプル

proxy_sample.js

var $ = Proxy.ceate({
  get: function (_, name) {
    return function () {
       var args = Array.prototype.slice.call(arguments);
       var func =  function (o) {
         return o[name].apply(o, args);
       };
       return func;
    };
  }
});

// --------------------------------------------
// Example
// --------------------------------------------
/*

["a","b","c"].map($.toUpperCase()); // ["A","B","C"]

same as

["a","b","c"].map(function(o){ return o.toUpperCase(); })

 */