你好嗎？現在，我正在用 Javascript 學習數組。我已經完成了一個將數組內容顯示到 HTML 文件中的函數，但我只收到“未定義”。首先，我嘗試修改“contenido”內部的代碼，但我只將“字符”接收到0位置，例如：contenido += "<div id=d"+posicion+">Titulo: " +系列標題[0]。它給我返回了“D”，德克斯特。我究竟做錯了什么？這是我的代碼。/*Creating a class to structure the information of a TV show by saving the title, theme, array with the main actors and saving the favorite actor in the array.*/class SerieTV {    constructor (titulo, tematica, actoresPrincipales){        var arrayActores = new Array();        this.titulo=titulo;        this.tematica=tematica;        this.actores=actoresPrincipales;/* Adding a function to generate a random favorite actor.*/            this.generaActorFavorito = function(){            var long = actoresPrincipales.length;            let calc = Math.floor(Math.random()*(long));           arrayActores = actoresPrincipales[calc];           console.log(arrayActores);        }            }}/* Creating 3 series, the 1st with 2 actors, 2nd with 3 and 3rd with 4. Later, adding it to a new array called "total_series."*/var show01= new SerieTV('Dexter ',  'Drama ', ['Michael C Hall ' ,'Jennifer Carpenter']);show01.generaActorFavorito();var show02 = new SerieTV('Samurai Gourmet' ,  'Cocina' ,  ['Naoto Takenaka' ,'Tetsuji Tamayama' , 'Honami Suzuki '] );show02.generaActorFavorito();var show03 = new SerieTV ('Breaking Bad ', 'Drama ', ['Aaron Paul ','Bryan Cranston ', 'RJ Mitte ', 'Anna Gunn ']); show03.generaActorFavorito();console.log("-------------------------");var total_series = new Array();total_series.push(show01);total_series.push(show02);total_series.push(show03);console.log(total_series);console.log("-------------------------");