javascript - 变量字典内容

Question

我不确定这是否可能，或者我是否采取了错误的方法，我尝试过搜索，但我不确定这些术语。

我想将变量传递到 Controller 字典中，因此在查找中我可以执行类似controller('OPTION','PLAY')的操作，而不是使用“PLAY”

var ip = '192.168.1.5'
var Keys = {
            HOME:          '/keypress/Home',
            REV:           '/keypress/Rev',
            FWD:           '/keypress/Fwd',
            PLAY:          '/keypress/Play',
            SELECT:        '/keypress/Select',
            LEFT:          '/keypress/Left',
            RIGHT:         '/keypress/Right',
            DOWN:          '/keypress/Down',
            UP:            '/keypress/Up',
            BACK:          '/keypress/Back',
            INSTANTREPLAY: '/keypress/InstantReplay',
            INFO:          '/keypress/Info',
            BACKSPACE:     '/keypress/Backspace',
            SEARCH:        '/keypress/Search',
            ENTER:         '/keypress/Enter',
            A:             '/keypress/Lit_a'
     }

来自此:

var controller = {
                  PLAY:{
                        hostname: ip,
                        port: 8060,
                        path: Keys['PLAY'],
                        method: 'POST'
                        }
                  }

对此:

var controller = {
                  OPTION:{
                        hostname: ip,
                        port: 8060,
                        path: Keys[Key],
                        method: 'POST'
                        }
                  }

我试图避免以下情况

var controller = {
                  PLAY:{
                        hostname: ip,
                        port: 8060,
                        path: Keys['PLAY'],
                        method: 'POST'
                        }
                  FWD :{
                        hostname: ip,
                        port: 8060,
                        path: Keys['FWD'],
                        method: 'POST'
                        }
                  REV :{
                        hostname: ip,
                        port: 8060,
                        path: Keys['REV'],
                        method: 'POST'
                        }
                  ...

                  }

Answer 1

你有没有想过这样的事情:

controller = {
       OPTION : function(key){
                    return {
                    hostname: ip,
                    port: 8060,
                    path: Keys[key],
                    method: 'POST'
                   } 
                   }
              }

然后你可以通过controller.OPTION("PLAY")得到它。它本质上是创建 getOption() 方法 epascerallo 建议耦合到 Controller 对象中。