不能在箭头函数中调用它[重复]

Question

当我尝试通过this 关键字访问时遇到问题。我需要在updateTime 中访问run 函数

export class PlayerService {

 createPlayer(): void {
            return new window['YT'].Player(this.youtube.playerId, {
                height: this.youtube.playerHeight,
                width: this.youtube.playerWidth,

                events: {
                    'onStateChange': (event) => {

                        function updateTime() {

                   //////I need to access | run function | from here 

                        };

                        this.timeupdater = setInterval(updateTime, 100);


                    }
                }
            });
        }

           run (){

    //some codes 



                }
}

我正在研究 ionic 2

Answer 1

你需要一路走箭头功能

function updateTime() {

应该是

var updateTime = () => {

或

setInterval(updateTime, 100);

应该是

setInterval(() => updateTime(), 100);